Effective Data Storytelling - Brent Dykes - ebook

Effective Data Storytelling ebook

Brent Dykes

112,99 zł


Master the art and science of data storytelling--with frameworks and techniques to help you craft compelling stories with data. The ability to effectively communicate with data is no longer a luxury in today's economy; it is a necessity. Transforming data into visual communication is only one part of the picture. It is equally important to engage your audience with a narrative--to tell a story with the numbers. Effective Data Storytelling will teach you the essential skills necessary to communicate your insights through persuasive and memorable data stories. Narratives are more powerful than raw statistics, more enduring than pretty charts. When done correctly, data stories can influence decisions and drive change. Most other books focus only on data visualization while neglecting the powerful narrative and psychological aspects of telling stories with data. Author Brent Dykes shows you how to take the three central elements of data storytelling--data, narrative, and visuals--and combine them for maximum effectiveness. Taking a comprehensive look at all the elements of data storytelling, this unique book will enable you to: * Transform your insights and data visualizations into appealing, impactful data stories * Learn the fundamental elements of a data story and key audience drivers * Understand the differences between how the brain processes facts and narrative * Structure your findings as a data narrative, using a four-step storyboarding process * Incorporate the seven essential principles of better visual storytelling into your work * Avoid common data storytelling mistakes by learning from historical and modern examples Effective Data Storytelling: How to Drive Change with Data, Narrative and Visuals is a must-have resource for anyone who communicates regularly with data, including business professionals, analysts, marketers, salespeople, financial managers, and educators.

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How to Drive Change with Data, Narrative, and Visuals

Brent Dykes

Cover design: Brent Dykes and Wiley Cover illustration: © Rawpixel.com/Shutterstock

Copyright © 2020 by John Wiley and Sons, Inc. All rights reserved.

Published by John Wiley & Sons, Inc., Hoboken, New Jersey. Published simultaneously in Canada.

No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning, or otherwise, except as permitted under Section 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 646-8600, or on the Web at www.copyright.com. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, or online at www.wiley.com/go/permissions.

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Library of Congress Cataloging-in-Publication Data:Names: Dykes, Brent, author. Title: Effective data storytelling : how to drive change with data,    narrative and visuals / Brent Dykes. Description: Hoboken, New Jersey : John Wiley and Sons, Inc., [2020] |    Includes bibliographical references and index. Identifiers: LCCN 2019032934 (print) | LCCN 2019032935 (ebook) | ISBN    9781119615712 (hardback) | ISBN 9781119615736 (adobe pdf) | ISBN    9781119615729 (epub) Subjects: LCSH: Business communication. | Information visualization. |    Storytelling. Classification: LCC HF5718 .D95 2020 (print) | LCC HF5718 (ebook) | DDC    658.4/5–dc23 LC record available at https://lccn.loc.gov/2019032934LC ebook record available at https://lccn.loc.gov/2019032935

To my family (and Jackson, who we miss dearly)

To Dad, Stan, and Hans—thanks for sharing the power of storytelling






Chapter 1 Introduction to Driving Change through Insight

Why Change Is Important

Everyone Becomes an Analyst

Data Literacy Is Essential in Today’s Data Economy

What Is an Insight?

Effective Communication Turns Insights into Actions

Data-driven Change Isn’t Easy

Strive to Communicate, Not Just Inform

Telling the Story of Your Data


Chapter 2 Why Tell Stories with Data?

Humans Are Storytelling Creatures

Stories Beat Statistics

Three Essential Elements of Data Stories

Driving Action with Data Stories

Why Your Insights Need Narrative and Visuals


Chapter 3 The Psychology of Data Storytelling

Most Decisions Are Not Based on Logic

How We React to Facts

How We React to Stories

Data Stories Bridge Logic and Emotion

What Could Semmelweis Have Done Differently?


Chapter 4 The Anatomy of a Data Story

The Six Essential Elements of a Data Story

Data Stories Come in All Shapes and Sizes

Every Data Story Needs a Storyteller

Know Your Audience before Telling Your Story

When It Makes Sense to Craft Data Stories and When It Doesn’t


Chapter 5 Data The Foundation of Your Data Story

Examine the Building Blocks of Your Data Stories

Every Data Story Needs a Central Insight

Do You Have an Actionable Insight?

The Analysis Process: Exploration to Explanation

Analyzing and Communicating Data Demands Discipline

When Too Much of a Good Thing Is Bad


Chapter 6 Narrative The Structure of Your Data Story

Defining a Narrative Model for Data Stories

Fleshing Out Your Narrative with Story Points

Storyboarding Your Data Story

When They Want Just the Facts

Uncovering the Heroes in Your Data Story

How Conflict Amplifies the Impact of Your Data Narrative

Make Your Ideas More Digestible with Analogies


Chapter 7 Visuals (Part 1): Setting the Scenes of Your Data Story

Human Perception and Our Innate Pattern-seeking Abilities

Facilitating Meaningful Comparisons with Visuals

Principle #1: Visualize the Right Data

Principle #2: Choose the Right Visualizations

Principle #3: Calibrate the Visuals to Your Message

End of Part I: The Scenes Are Set


Chapter 8 Visuals (Part 2): Polishing the Scenes of Your Data Story

Principle #4: Remove Unnecessary Noise

Principle #5: Focus Attention on What’s Important

Principle #6: Make Your Data Approachable and Engaging

Principle #7: Instill Trust in Your Numbers

A Principled Approach to Visual Storytelling


Chapter 9 Crafting Your Own Data Story

Learning from a Master Data Storyteller

Deconstructing a Data Story

Everyday Data Stories Come in All Shapes, Sizes, and Flavors

Data Storyteller: A Guide and a Change Agent


About the Author

About the Website


End User License Agreement

List of Tables

Chapter 1

Table 1.1

Chapter 3

Table 3.1

Chapter 5

Table 5.1

Chapter 8

Table 8.1

Table 8.2

Table 8.3

Table 8.4

Table 8.5

Table 8.6

Table 8.7

List of Illustrations

Chapter 1

Figure 1.1 The data science team expected the transactions to be normally distributed (lef...

Figure 1.2 To create value with analytics, like dominos, a sequential series of steps must...

Figure 1.3 When you inform someone of something, you are just passing along information. H...

Figure 1.4 When you present your insights as data stories, you’re more likely to influence...

Chapter 2

Figure 2.1 In data storytelling, all of the different elements—data, narrative, and visual...

Figure 2.2 When you combine the right data with the right narrative and visuals, you have ...

Figure 2.3 If we expand the traditional rhetorical triangle to include




Figure 2.4 A data chart similar to this one revealed an opportunity for the technology com...

Figure 2.5 The strength of how you communicate an insight can be measured by what effect i...

Figure 2.6 When the prosecuting or defending attorneys used a story format for presenting ...

Figure 2.7 In each key area of focus, the illustrated instructions outperformed the text-b...

Figure 2.8 FRED Measles shows how a measles outbreak will expand exponentially within a co...

Chapter 3

Figure 3.1 Ignaz Semmelweis (1818–1865)

Figure 3.2 From 1841 to 1846, Ignaz Semmelweis found the hospital’s maternity clinic for s...

Figure 3.3 After introducing his handwashing policy, Clinic #1’s childbed fever mortality ...

Figure 3.4 Like

Star Trek

’s Mr. Spock, we may like to believe that decisions should only...

Figure 3.5 Daniel Kahneman popularized the notion that the human mind has two subsystems t...

Figure 3.6 The three scenes above are representative of different moments in Heider and Si...

Figure 3.7 Even though the subjects were informed that the closet did not contain volatile...

Figure 3.8 When an alternative cause was presented (suspicious materials), the subjects we...

Figure 3.9 This illustration by English caricaturist James Gillray (1756–1815) shows how N...

Figure 3.10 Facts will only activate the Broca’s and Wernicke’s areas that are associated w...

Figure 3.11 Uri Hasson discovered when we share stories with others, neural coupling occurs...

Figure 3.12 Most people don’t know which card(s) to turn over in this example of the Wason ...

Figure 3.13 The Wason Selection Task became easier for people to comprehend when it was fra...

Figure 3.14 When you share insights with data stories, you’re able to take advantage of the...

Figure 3.15 When you correct and dislodge a myth, the residual narrative can still be probl...

Figure 3.16 Semmelweis relied heavily on data tables such as this one to support his argume...

Figure 3.17 Up until 1823, when the Vienna hospital introduced the practice of pathological...

Chapter 4

Figure 4.1 If a data communication bears more attributes from the right side of the data s...

Figure 4.2 While they may appear to be similar because they both leverage data visualizati...

Figure 4.3 The inverted pyramid approach features the most important information at the be...

Figure 4.4 There are six essential elements to a data story.

Figure 4.5 Most literary stories such as

The Wizard of Oz

, written by L. Frank Baum, fea...

Figure 4.6 In Pixar’s movie


, a short, five-minute montage at the beginning introduces...

Figure 4.7 Following Mark Twain’s argument that it’s better to bring on the old lady and “...

Figure 4.8 All of these communications are based on data, but not all of them are equally ...

Figure 4.9 In 1869, retired French civil engineer Charles Joseph Minard produced this them...

Figure 4.10 Florence Nightingale (1820–1910)

Figure 4.11 Nightingale’s polar area charts (also called Nightingale Rose or Coxcomb charts...

Figure 4.12 Dr. John Snow (1813–1858)

Figure 4.13 This variation of Dr. John Snow’s map of the Soho cholera outbreak has a red li...

Figure 4.14 In direct communication scenarios, you have more control and flexibility as the...

Figure 4.15 New AI-based storytelling technologies will transform how we view and consume s...

Figure 4.16 Even though each of these adventure movies focuses on the same general story of...

Figure 4.17 When an insight falls into the

Story Zone

(Hard/Med-High), it should be commu...

Chapter 5

Figure 5.1 Multiple news publications featured the German researchers’ findings on the hea...

Figure 5.2 For each unique audience, the four dimensions of the 4D Framework can give you ...

Figure 5.3 A GPS device analogy can show how the 4D Framework can be helpful in your analy...

Figure 5.4 The formation of a data story begins with using exploratory data visualizations...

Figure 5.5 Indiana Jones embodies the two sides of the analysis process. As an archaeologi...

Figure 5.6 A data cut starts off right by exploring the data for insights; however, it fai...

Figure 5.7 The data cameo starts with a predefined story—not data. Various data points are...

Figure 5.8 Figure With data decoration, insufficient time is spent on actually analyzing t...

Figure 5.9 During World War II, statistician Abraham Wald noticed that the US military wer...

Figure 5.10 This


cartoon by Randall Munroe highlights the unique relationship betwee...

Figure 5.11 While the divorce rate in Maine is highly correlated with the per capita consum...

Figure 5.12 When stimulus (audio, imagery, touch, etc.) is received by the brain, it spends...

Figure 5.13 For most audiences, the text-based instructions on the left are going to genera...

Chapter 6

Figure 6.1 Aristotle’s model is fairly straightforward, but it has had a significant influ...

Figure 6.2 Freytag’s model builds on Aristotle’s model, adding more elements that provide ...

Figure 6.3 Campbell’s model is more complex with multiple stages and has a cyclical patter...

Figure 6.4 The Data Storytelling Arc uses Freytag’s Pyramid as a foundation for how to tel...

Figure 6.5 The ecommerce data story shows how insights in each of the four stages combine ...

Figure 6.6 Many business communication models can be aligned with the Data Storytelling Ar...

Figure 6.7 Your key insights will most likely align with one of these nine common types of...

Figure 6.8 The ecommerce data story used various types of story points to convey its messa...

Figure 6.9 The first step in storyboarding your data story is to identify your Aha Moment....

Figure 6.10 The next step is to identify your Hook and the Setting that is needed.

Figure 6.11 The next step is to connect your Hook to your Aha Moment with relevant story po...

Figure 6.12 If you’re looking to drive action and change, you need to help the audience und...

Figure 6.13 The Data Trailer is designed to pique interest from the impatient executive and...

Figure 6.14 This five-step process will help you develop a hero for your data story.

Chapter 7

Figure 7.1 Hans Rosling (1948–2017)

Figure 7.2 Even though the summary statistics are similar for the four datasets, Frank Ans...

Figure 7.3 Preattentive attributes help people discern similarities and differences in dat...

Figure 7.4 These Gestalt principles illustrate how human perception groups information tog...

Figure 7.5 In the first two configurations, the principle of similarity influences how we ...

Figure 7.6 We use all kinds of comparisons in our data communications. They often fall int...

Figure 7.7 The seven key principles of visual storytelling are divided into two major sect...

Figure 7.8 Sometimes, adjusting the underlying data may better convey your key insight to ...

Figure 7.9 In this dual


-axis chart, both revenue and the number of customers have grow...

Figure 7.10 By displaying the percent change of the customers and revenue metrics, both mea...

Figure 7.11 By trending the revenue per customer on the second axis, it’s easy to see the c...

Figure 7.12 In these two contrasting scenarios, the added context of having the previous ye...

Figure 7.13 The left chart requires the audience to compare the differences between the two...

Figure 7.14 The left chart reveals FY2018 is underperforming the previous year. However, th...

Figure 7.15 If you can isolate the right category of charts for your particular use case, y...

Figure 7.16 Cleveland and McGill found data visualizations that align more with the percept...

Figure 7.17 Only the bottom values in this stacked column can be compared by position with ...

Figure 7.18 If you want to show the proportion of sales coming from different industry vert...

Figure 7.19 Lollipop and dot plot charts are two alternatives to the bar chart. They both s...

Figure 7.20 We often use bar and column charts to compare data for two different categories...

Figure 7.21 The dumbbell chart on the left shows the difference in unit sales for each auto...

Figure 7.22 The analyst chose to focus on only the yearly changes for the different device ...

Figure 7.23 In the left bar chart, it’s easier to compare the products within a segment. In...

Figure 7.24 With this back-to-back bar chart, you can compare the overall patterns (curvatu...

Figure 7.25 In the stacked bar chart, it is difficult to compare the stacked values that ar...

Figure 7.26 In the 100% stacked bar chart, it is easy to compare the values on the ends, bu...

Figure 7.27 On the left, subtle differences between the two line charts can interfere with ...

Chapter 8

Figure 8.1 The original pie chart on the left suffers from many design issues. The redesig...

Figure 8.2 After you’ve set up your visuals correctly, you now need to focus on refining t...

Figure 8.3 To simplify and declutter the confusing spaghetti chart (left) that shows the t...

Figure 8.4 In order to simplify the donut chart on the left, the lesser slices are combine...

Figure 8.5 The separation of the busy line chart on the left into facets or panel line cha...

Figure 8.6 There are several different ways of delivering the scenes of a data story.

Figure 8.7 The color contrast between the blue and light gray numbers in the middle set of...

Figure 8.8 By highlighting the main insight with color and using grayscale for the less-im...

Figure 8.9 The color scale on the left uses only a single hue, whereas the one on the righ...

Figure 8.10 The diverging color palette can be useful with a range of values in which the m...

Figure 8.11 With the categorical color palette, you want to have distinct hues that stand o...

Figure 8.12 While you could figure out the point of the left chart, the explanatory title h...

Figure 8.13 In this area chart, a mix of observational (194%), additive (competitor X, new ...

Figure 8.14 Typographic elements such as weight, size, and color can be used to focus atten...

Figure 8.15 With layering, you can turn a complex data visualization into more manageable c...

Figure 8.16 Both icons and photos can help make your content more engaging for your audienc...

Figure 8.17 The three product images call attention to the key data points in this chart.

Figure 8.18 To make the 1968 Olympic record-setting long jump distance of Bob Beamon more r...

Chapter 9

Figure 9.1 Rosling orients the audience to the axes and quadrants in his virtual bubble ch...

Figure 9.2 Rosling explains what the bubble sizes in his chart represent.

Figure 9.3 Rosling uses a reference line to emphasize that average lifespans are below 40 ...

Figure 9.4 Rosling physically reacts to the downturn in 1918.

Figure 9.5 Rosling pauses the time progression and uses selective labeling to highlight se...

Figure 9.6 Rosling breaks apart the China bubble to compare its different provinces with o...

Figure 9.7 Rosling narrates the final segment of how all countries can move to the top-rig...

Figure 9.8 Hans Rosling filming the data story for

The Joy of Stats

in London in 2010. C...

Figure 9.9 Based on PISA data, the United States didn’t rank highly in any of the three co...

Figure 9.10 NCLB had the goal of achieving 100% proficiency in math and reading. While math...

Figure 9.11 Hispanic and Black students experienced only minor gains in math and reading co...

Figure 9.12 After NCLB, the United States slipped further behind other OECD countries, espe...

Figure 9.13 For a wealthy nation, the United States has a disproportionately high amount of...

Figure 9.14 When you examine the influence of school participation in lunch programs, you c...

Figure 9.15 Only the United States and Luxembourg fall into the top-left quadrant as countr...

Figure 9.16 In Act I, I used a jitter plot and icons as key visual storytelling tactics.

Figure 9.17 In Act II, these close-ups highlight some of the visual design decisions that w...

Figure 9.18 In Act III, these close-ups represent some of the visual design decisions that ...

Figure 9.19 Sarah emailed her boss, Jim, a modified data trailer to save one of her high-pe...

Figure 9.20 The left-side scatterplot shows customer accounts based on their gross margin a...

Figure 9.21 If the manufacturer increased the gross margin (GM) percentage for its worst cu...

Figure 9.22 To become a data-driven change agent, you need to be sufficiently data literate...



Table of Contents












































































































































































































































































































































Today, data has become one of the most valuable business assets. The companies that are best able to turn their data into insights, and their insights into knowledge, will outsmart and outperform their competition. In this data-driven world, storytelling is a vital enabler that will help organizations succeed.

We now live in a world with more data than ever before. Our data volumes are measured in zettabytes, which is an unimaginably vast quantity. One zettabyte is a number with 21 zeros at the end and contains one billion terabytes (one terabyte being the capacity of a state-of-the-art home computer). It is predicted that by 2025, we will have more than 175 zettabytes of data in the world, an exponential growth from the around 10 zettabytes we have in the world today. But all of that data is worthless unless businesses are able to gain insights from the data that allows them to act, make better decisions, and initiate change.

In order to make the most of the unprecedented opportunities presented by data, businesses and the individuals within them need the right skills—they need to be data literate. From my work helping companies all over the globe make better use of data, I know that the ability to tell a story from data is a core pillar of data literacy.

Storytelling has been ingrained in the human way of life for hundreds of thousands of years. Throughout history, humans have used stories as an essential tool to capture people’s attention, engage them, ignite their imagination, and pass on knowledge—and that ability to tell stories is as important, if not more important, in today’s data-driven world as it was when our ancestors dwelled in caves.

Those who use storytelling effectively don’t just present facts, they present stories that will persuade, be remembered, and told and retold within an organization. The ability to tell stories from data is a skill that will become increasingly valuable in the job market of tomorrow.

Brent Dykes has done an outstanding job of creating a practical and engaging book that will help to improve your data storytelling skills. You will learn how to take the key ingredients of data, narratives, and visuals to help explain, enlighten, and engage people, leading to better decision making and initiating change.

I am sure that after you have finished reading Effective Data Storytelling: How to Drive Change with Data, Narrative, and Visuals, the book will remain on your shelf as an invaluable resource and reference guide to dive back into when you need a reminder of how to make better use of data and present data in a way that makes a real difference.

—Bernard Marr

Futurist and author of The Intelligent Company, Big Data, Big Data in Practice, and Artificial Intelligence in Practice


While many data visualization principles are covered in this book, it is not a data visualization book. I want to set that expectation upfront, or else you may be disappointed. However, if you’re looking to communicate your insights more effectively to others, you’ve found the right book. If you want to better understand why data storytelling is so effective, again—this is the book. If you’re seeking to drive positive change with data, this book will equip you with everything you’ll need (at least, from a communication perspective). As you go through each chapter in this book, you’ll notice I start each one with a story—because that’s how much I believe in the power of storytelling. Let us begin this adventure together, once upon an insight…

* * * *

After more than two years of intense research and writing, I’m excited to share my perspective on data storytelling. My journey toward writing this book began in 2013 when I convinced Adobe’s event team to let me deliver a breakout session on “data storytelling” at our upcoming customer conference. At the time, it was an emerging topic that resonated with me. Having worked with data for the better part of my career—over 15 years in enterprise analytics—I experienced daily how critical effective data communication was. This session was my first formal opportunity to share some of the early concepts and frameworks I had developed. When the presentation went extremely well and I was asked to repeat the session, I knew I was onto something.

Over the next few years, I continued to develop and hone my ideas on data storytelling and spoke at various business and technology conferences. Repeatedly, after I presented on how to tell stories with data, attendees would ask if I had a book or offered workshops—this was my next big signal. In 2016, I wrote a popular Forbes article titled “Data Storytelling: The Essential Data Science Skill Everyone Needs.” It has generated more than 200,000 views and is consistently listed as Google’s top search result for “data storytelling”—this was the final indication I needed to write this book.

With the growth in data usage across small and large organizations, people must increasingly be bilingual in data. However, my urgency to write this book increased when I realized how poorly understood the concept of data storytelling was and how the term was in danger of becoming just another empty buzzword. Despite its immense potential, it was frequently positioned as just an extension of data visualization. Furthermore, the narrative aspect of data storytelling was largely ignored or treated as simply a sidekick to the visuals. While many were advocating the virtues of data storytelling, very few people explained how and why it worked. If that weren’t enough, during the course of writing this book, I’ve seen facts abused, twisted, and disparaged on a daily basis. Instead of using the rich levels of data to our benefit, we’re sliding back to a time when facts didn’t matter. Under these difficult circumstances, we need data storytellers more than ever before.


When you write a book, you realize how important it is to have the support of family, friends, and colleagues. I want to start by thanking my wife, Libby, and our five children (Lauren, Cassidy, Linden, Peter, and Josh). Without their love, support, and patience, this book wouldn’t have been possible. I’m also grateful to my father, who has inspired me with his storytelling throughout my life, and to my mother, who endured all of my dad’s stories.

I’m appreciative of all the people who offered me their feedback, expertise, experiences, and encouragement during the creation of this book. Right from the inception of this book, Chad Greenleaf and Tim Wilson have been great advisors at each stage of its development. I also want to thank Chris Haleua, Dylan Lewis, Maria Massei-Rosato, Andrea Henderson, Alan Wilson, Jason Krantz, Alex Abell, Sarah Chalupa, Dan Stubbs, Archie Baron, Dan Hillman, Chris Willis, Andrew Anderson, Jared Watson, Kristie Rowley, Jeremy Morris, John Stevens, and James Arrington. I’d like to recognize Jeri Larsen for her invaluable contributions with editing this book. Additionally, I’m grateful to Sheck Cho, Purvi Patel, and the entire Wiley team for making this book a reality.

Many people have inspired me in my data storytelling journey, and I would like to thank them as well: Hans Rosling, Chip and Dan Heath, Steve Denning, Stephen Few, Dona Wong, Alberto Cairo, Edward Tufte, and Daniel Kahneman. Lastly, I’m grateful to all of the people over the years who have attended my presentations and workshops on data storytelling, and who have read and shared my articles on this important topic. Your enthusiasm for this content has fueled my passion to complete this project, and I hope you enjoy reading what your interest inspired me to write.

Chapter 1Introduction to Driving Change through Insight

Any powerful idea is absolutely fascinating and absolutely useless until we choose to use it.

—Richard Bach, author

A mildly traumatic experience taught me one of my first lessons about data storytelling. Early in my career, after completing the first year of my Master of Business Administration (MBA) program, I secured an internship at a well-known, multichannel retailer based in the Midwest. At the time, the economy was in the middle of a tough recession, and many US corporations weren’t interested in hiring international students like me who would incur additional fees to sponsor. Fortunately, my online marketing experience in Canada appealed to this retailer, and I was offered an intern position in its acclaimed ecommerce department.

As one of several MBA interns vying for a job offer at the end of the summer, I had an important midpoint presentation coming up with the senior vice president (SVP) of ecommerce. It afforded me a crucial opportunity to ensure my project was heading in the right direction before my final presentation. With a pregnant wife and two young kids counting on me to secure a full-time position, I was feeling substantial pressure to make a good impression on this influential executive.

The SVP in question wasn’t your typical business leader. He was a former military captain and special forces helicopter pilot. If his austere demeanor wasn’t intimidating enough, he was also extremely sharp and had graduated from a top-tier business school. Over the years, many MBA interns saw their carefully crafted presentations shot to pieces in review sessions with this senior executive; it was not uncommon to see shell-shocked faces and tears after his meetings.

Not intending to become one of his many casualties, I worked diligently to prepare for my midpoint presentation. I was pleased with the progress I had made on my project, and I was confident in my ability to present what I had accomplished so far. However, during the course of my project, I had stumbled across an interesting data point while reviewing customer survey responses. The data indicated a commonly held practice related to order shipping wasn’t as important to customers as the ecommerce team supposed. Even though this insight wasn’t central to my project, I decided it was worth sharing because if the data turned out to be true, it could have a significant impact on the ecommerce team’s approach.

When the day came for me to present, everything went well—until I got to the slide with the customer survey insight. It generated a reaction from the SVP . . . but not the one I expected. He leaned forward and blurted out “Bullshit”—not under his breath but forcefully for everyone in the room to hear. His emphatic response ensured no one in the room would challenge his authoritative opinion on the matter—including me. It felt like I had just stepped on a landmine—a cultural one. A paralyzing feeling of panic swept over me as I realized how ill-prepared and exposed I was at that exact moment. Luckily, a daring mentor jumped in to provide some needed cover fire so I could recover and stumble through my remaining slides. While my ego was a little shaken, I survived the meeting and left the boardroom with a valuable insight of my own.

As I reflected on the experience, I realized I had made a serious miscalculation. In my naive excitement to add value and contribute a potentially meaningful insight, I assumed the potential merit of the insight would ensure its acceptance and further investigation. Unfortunately, sheer merit alone wouldn’t be enough to safeguard its adoption. Like so many other promising findings that have never seen the light of day, my insight was dismissed. It died in the boardroom that day. While noble and aspirational, the meritocracy I ascribed to was an illusion. People and organizations aren’t always open to new findings—deliberately or unintentionally—that can better their performance or position.

Many factors contributed to the demise of my insight: my poor delivery, the executive’s closed-mindedness, and cultural inertia. However, a key contributing factor that sealed the insight’s fate was the level of change it would incite. Insight and change go hand-in-hand. Whenever we uncover an insight, it inescapably leads to changes if the data is acted upon.

Often, the potential value of a discovery is directly proportional to the level of resistance it will face. While we may want to believe insights are harmless gifts, they can have subtle-to-significant repercussions that may be difficult for people to accept. Generally, the bigger an insight is, the more disruptive it will be to the status quo. People can struggle with giving up what’s routine and familiar. When a new insight isn’t well understood and doesn’t sound compelling, it will have no chance of overcoming resistance to change. After this experience, I discovered if you want to be insightful and introduce change, you can’t just inform an audience; you must engage them.

Why Change Is Important

I cannot say whether things will get better if we change; what I can say is they must change if they are to get better.

—Georg C. Lichtenberg, scientist

The ancient Greek philosopher Heraclitus viewed change as being central to the universe and is attributed with the saying “change is the only constant in life.” We live in a constantly evolving world that is more random, noisy, and unpredictable than we want to admit. It’s important for individuals and organizations to be adept at adapting to shifting environments. As former General Electric CEO Jack Welch said, “Change before you have to.” Instead of becoming stagnant or settling for less, we often search for new ways to improve ourselves and the world around us.

Throughout time, mankind’s innovations have been driven by people seeking to make things better—faster, cheaper, safer, more efficient, more productive, and so on. Groundbreaking innovations such as the printing press, telephone, automobile, computer, and internet have introduced significant change. These scientific breakthroughs necessitated the tearing down of established beliefs, skill sets, and systems in order to replace them. Change becomes an unavoidable byproduct of progress. If you want to advance and improve, you must pursue new insights and implement new ideas that inevitably introduce change.

Not all change has to be massively disruptive. Post-war Japanese manufacturers developed the kaizen philosophy (“change for better”), where employees were encouraged to continuously introduce small, incremental improvements throughout their factories. Eventually, the culmination of these small process refinements over the years helped Japanese firms such as Toyota and Sony gain a major competitive advantage in terms of product quality and manufacturing efficiency. Today, most innovative startups and even large companies embrace a similar lean methodology that involves incremental experimentation and agile development.

An essential underpinning of both the kaizen and lean methodologies is data. Without data, companies using these approaches simply wouldn’t know what to improve or whether their incremental changes were successful. Data provides the clarity and specificity that’s often needed to drive positive change. The importance of having baselines, benchmarks, and targets isn’t isolated to just business; it can transcend everything from personal development to social causes. The right insight can instill both the courage and confidence to forge a new direction—turning a leap of faith into an informed expedition.

Everyone Becomes an Analyst

Data helps solve problems.

—Anne Wojcicki, entrepreneur

For the greater part of the past 50 years, data has been primarily entrusted to only two privileged groups within most business organizations: an executive who required data to manage the business; or a data specialist—a business analyst, statistician, economist, or accountant—who gathered, analyzed, and reported the numbers for management. For everyone else, exposure to data has been fairly limited, indirect, or intermittent.

In today’s digital age, data has become more pervasive, exposing more people to facts and figures than ever before. The volume of data is expected to grow 61% each year, reaching 175 zettabytes by 2025 (1 zettabyte is a trillion gigabytes) (Patrizio 2018). Much of this explosive growth can be attributed to the increasingly connected world in which we live and the additional data that is being created by machines—not just by humans or business entities.

Data has rapidly become a key strategic asset, shifting from being “nice-to-have” to essential at most organizations. For example, for tech giants such as Amazon, Google, Facebook, and Netflix, data has become an integral foundation of their business success—both in terms of how it powers their operations and the immense strategic value it offers. From the data-powered recommendation engines of Amazon and Netflix to the data-rich ad networks of Google and Facebook, these data-savvy companies have carved out formidable competitive advantages through data and technology. However, acumen with data is no longer just the domain of industry leaders—innovative companies of all sizes are reaping its benefits. For example, I met a small, Oregon-based home builder that was able to gain unparalleled data transparency into all of its approval and review processes, giving it a distinct advantage over local competitors that were saddled with inefficient paper-based processes.

In today’s dynamic, fast-paced business environment, limiting information to a narrow set of executives and data specialists no longer makes sense. Forward-thinking organizations look to empower more of their workers with data so they can make better-informed decisions and respond more quickly to market opportunities and challenges. To democratize data and foster data-driven cultures, companies rely on various analytics technologies—everything from the ubiquitous spreadsheet to advanced data discovery tools.

You no longer need to have the words “data” or “analyst” in your job title to be immersed in numbers and be expected to use them on a regular basis. Data is now everyone’s responsibility. In fact, the Achilles’ heel of any analyst is a lack of context—something most business users have in spades. A sharp analyst can miss something in the data that is easily spotted by the seasoned eyes of a business user, who can draw on years of domain expertise. Data doesn’t care who you are or what your analytical skill level is—it’s willing to yield up insights to whoever is diligent and curious enough to find them. Greater data access means valuable insights can be discovered by people of all backgrounds—not just technical ones.

Outside of work, you may not realize how much analysis you’re performing in your “free time” as data is increasingly integrated into various aspects of our lives. For example, when you plan a vacation or evaluate different products online, your decisions are most likely informed by a certain type of data—the recommendations and ratings of complete strangers. In fact, 89% of consumers indicated that online reviews influenced their buying decisions (PowerReviews 2018). If you’re an avid sports fan, you’re regularly consuming statistics throughout the season on your favorite team’s performance (or in some cases, the lack thereof). Furthermore, you might be among the almost 60 million people in the United States and Canada who enjoy competing in fantasy sports that are powered entirely by data.

Closer to home, my wife never thought she would touch the world of analytics and data—until she started running marathons and competing in triathlons. Now, she is constantly analyzing her fitness level and training performance with her trusty Garmin GPS watch. Through hard work, determination, and data, she has been able to accomplish her fitness goals, including completing a full Ironman race and the well-known Boston Marathon. Whether we’re pursuing personal fitness or business goals, the recent surge in digital data—along with its growing utility and importance—is pushing everyone to become more data savvy.

Data Literacy Is Essential in Today’s Data Economy

The ability to take data—to be able to understand it, to process it, to extract value from it, to visualize it, to communicate it—that’s going to be a hugely important skill in the next decades.

—Hal Varian, Chief Economist at Google

Even though data is being thrust on more people, it doesn’t mean everyone is prepared to consume and use it effectively. As our dependence on data for guidance and insights increases, the need for greater data literacy also grows. If literacy is defined as the ability to read and write, data literacy can be defined as the ability to understand and communicate data. Today’s advanced data tools can offer unparalleled insights, but they require capable operators who can understand and interpret data. Just as a library comprised of the finest literary works in the world will be relatively worthless to someone who can’t read, the same applies to a rich repository of data in the hands of someone who doesn’t know how to use it.

Fortunately, you don’t need an advanced English degree to be literate in English. Similarly, to be data literate, you aren’t required to have advanced statistical knowledge and programming skills in Python or R. However, you will need some basic numeracy skills such as being able to understand, process, and interpret a standard data table or chart. Because you’re reading this book, I will assume you already possess the requisite numeracy skills to discover insights. Either through the good fortune of education, work experience, extracurricular activities, or just an innate curiosity, you’ve been able to develop this ability. Now, you’re looking to improve the other half of being data literate—the ability to communicate or share data effectively.

As Google’s Chief Economist Hal Varian has emphasized, the ability to find a valuable insight and then be able to share it effectively is going to be a “hugely important skill in the next decades” (McKinsey & Company 2009). In other words, much of the value that’s going to be generated from data will depend on these essential skills. The potential value hidden within your data will remain dormant if you are unable to understand and interpret what the numbers mean. If you are able to find a valuable insight but are unable to communicate it effectively, there’s still the possibility it won’t deliver on its potential. As inventor Thomas A. Edison highlighted, “The value of an idea lies in the using of it.” If your amazing finding is confusing or not compelling to others, they won’t be motivated to act on it. The more people who are capable of driving action from their insights, the more positive change and value we’ll see from data. Without action, insights are just empty numbers.

What Is an Insight?

Intuition is the use of patterns they’ve already learned, whereas insight is the discovery of new patterns.

—Gary Klein, psychologist

Throughout this book, I will repeatedly use the term insight, so it’s important that we begin by clarifying its meaning. Starting with the origin of the word, insight comes from Middle English for “inner sight” or “sight with the ‘eyes’ of the mind” (Online Etymology Dictionary 2019). Psychologist Gary Klein defined an insight as “an unexpected shift in the way we understand things” (Gregoire 2013). These “unexpected shifts” in our knowledge can occur as we analyze and examine data. For example, we may uncover a new relationship, pattern, trend, or anomaly in the data that reshapes how we view things. While most insights are interesting, not all of them are valuable. This book will be centered around meaningful insights that offer some tangible promise of value—increased revenue, cost savings, reduced risk, and so on.

Entrepreneur Rama Ramakrishnan shared a simple example of an insight that his data science team uncovered at a large business-to-consumer (B2C) retailer. When they were analyzing the retailer’s customer data by transaction amounts, they anticipated they would find a typical bell-curve distribution; however, they found an unanticipated second peak in the histogram (see Figure 1.1). The double-peaked histogram highlighted an interesting curiosity—an observation—but it quickly put his team on the path to discovering an insight.

Figure 1.1 The data science team expected the transactions to be normally distributed (left), but to their surprise, there was an unexpected double peak in the histogram.

When they investigated the second peak (which Ramakrishnan referred to as the “hmm”), they discovered it was mainly comprised of international resellers—not the retailer’s typical clientele of young mothers purchasing items for their children. Because this retailer didn’t have a physical or digital presence outside of North America, these resellers “would travel to the US from abroad once a year, walk into a store, buy lots of items, take them back to their country and sell them in their own stores” (Ramakrishnan 2017). This simple shift in the understanding of its customer base spurred a slew of additional questions for the B2C retailer:

What types of products were these resellers buying?

At which store locations were they shopping?

How could promotional campaigns better target these individuals?

How could this transaction data inform global expansion plans?

As this example shows, a single insight can unlock a multitude of new opportunities (or challenges), impacting a wide variety of activities. Ideally, insights don’t just shift our thinking but inspire us to do things differently. They convert data into direction that takes us to new, unforeseen places. For the B2C retailer, the discovery of the hidden segment of global resellers caused the retailer to re-examine how it would merchandise, promote, and expand internationally going forward. Key insights like this one can be true game changers, but only if we know how to share them effectively with the people who will decide their fate and help make them a reality.

Effective Communication Turns Insights into Actions

The goal is to provide inspiring information that moves people to action.

—Guy Kawasaki, author and venture capitalist

When you’re analyzing data for your specific job or for personal matters (budgeting or dieting), you are the audience of your analysis. You know the data intimately and are most likely in a position to act on whatever insights you uncover, as they only affect you. However, in an organizational setting, the insights you uncover can often have a much broader impact beyond just you individually. They can affect people around you in different ways such as what they believe, how they work, and what they prioritize. You may also require their involvement and support to implement whatever changes each insight evokes. This people dynamic is also shaped by your position within the group as being perceived as an insider or outsider (see Table 1.1).

Table 1.1Your Relationship with the Insight


When you analyze data for personal reasons, you don’t need to worry about communicating your insight to anyone else. You are both the analyst and the audience.


When you’re sharing an insight with your team, you will have the advantage of added context and a more intimate knowledge of the audience. Because you are also impacted by the insight, you have a vested interest in it being understood and adopted. Authority, power, and position can also shape how influential your insight is to the group. For example, an executive will have more pull than an intern.


When you’re sharing an insight with another team, you may be seen as more objective if you have nothing to gain from its adoption. In addition, the group may appreciate a fresh, external perspective. However, being an outsider can also be a disadvantage in terms of having less context and rapport with the audience.

For example, you may need your manager’s approval to spend money, time, and effort fixing a problem you’ve identified. To help resolve the issue, you may need support from peers and coworkers who may have different agendas and conflicting priorities. Additionally, you may have employees whom you need to adopt and implement the changes introduced by your insight. If these individuals are expected to embrace your insight, they will need to understand it sufficiently and be convinced of its importance. Effective communication becomes the vehicle for explaining your insight in a way so others understand it and are compelled to act on it.

Too often, communication is an afterthought rather than a critical step in the analytical process. While I have strived to communicate my insights effectively as an analyst, I too have underestimated the central role it plays in deriving value from data. Through my years of experience in analytics, I have observed five key steps to driving value from analytics: data, information, insight, decision, and action. Like a line of dominos, each step plays a role in driving toward value (see Figure 1.2). It starts with collecting raw data to serve as the foundation for gaining knowledge on a subject. The data is organized and summarized in reports, turning raw data into information that’s easier for more people to consume. When people examine and analyze these reports, they discover meaningful insights that inform decisions and drive actions that create value.

Figure 1.2 To create value with analytics, like dominos, a sequential series of steps must occur (and be repeated over time).

While on the surface these steps make sense, the diagram oversimplified the jump from finding an insight to influencing a decision. Facts alone will not influence decisions. As I learned from my ecommerce experience many years ago, other factors such as culture and tradition play an influential role in decision making. Only through skilled communication will an insight have any chance of persuading someone to re-evaluate their opinions and beliefs. Somehow you must figure out how your insights can break through cognitive, social, and organizational barriers to generate better decisions.

Data-driven Change Isn’t Easy

Our dilemma is that we hate change and love it at the same time; what we really want is for things to remain the same but get better.

—Sydney J. Harris, journalist and author

Change is often hard—both for the ones expected to adopt the change and those advocating for it. The natural tendency for most people is to resist something new or different because it appears to be risky, uncertain, or threatening. Many individuals will be complacent with the way things are. Even though the status quo may be found wanting, it still represents “the devil they already know.” Your findings may also encounter resistance if they make someone look bad. Nobody likes their poor performance, negligence, or bad decisions showcased for everyone to see. Even when your audience likes one of your insights, they may view acting on it as a lower priority or requiring more work than they can manage.

Navigating these concerns and issues adds complexity to the job of sharing insights. At times, you may even question whether it’s worth the trouble to share a particular insight. You might have gone through a similar experience to what I shared at the beginning of this chapter. In these situations, you have a choice to make: keep the insight to yourself or embrace whatever communication challenges it will entail, knowing the insight will be more beneficial if it’s shared. This decision will depend on how much you believe in the analysis or research. If you have any doubts about the insight’s validity or usefulness, not sharing it may be the right option until you can strengthen your position. However, if you’re confident in the quality of the analysis and convinced of its worth, you’ll want to seize the opportunity to share your discovery with others. While you may not face the same jeopardy that whistleblowers face when reporting wrongdoing, courage and determination may be required for sharing insights that may be viewed as disruptive or unconventional.

Strive to Communicate, Not Just Inform

How well we communicate is determined not by how well we say things but how well we are understood.

—Andrew Grove, American businessman

If you are determined to have your insights understood and acted upon, you must shift your approach from simply informing to communicating. American journalist Sydney J. Harris said, “The two words ‘information’ and ‘communication’ are often used interchangeably, but they signify quite different things. Information is giving out; communication is getting through.” Both approaches involve a sender (analyst) and a receiver (audience). However, there is a key difference between informing and communicating. While the goal of informing is to ensure the information is received, the purpose of communicating is to ensure the audience understands the meaning of the data (see Figure 1.3), which may often involve two-way communication between the sender and receiver to clarify the message.

Figure 1.3 When you inform someone of something, you are just passing along information. However, when you communicate something to someone, you ensure they understand it as well.

When you inform someone, you’re simply disseminating data in a passive, clinical manner. You expect the audience to interpret and comprehend the data for themselves. No overt message or interpretation of the data is passed along to the receiver—just the facts. On the other hand, communicating is about clarifying what the data means. When you communicate, you become an active, discernible participant in the delivery of the information rather than being a removed, neutral one if you are simply informing. When your goal is to “get through” to your audience, you must engage them by communicating in a way that guides them through the numbers and motivates them to act.

Storytelling is critical to effective communication. As an example, if you were to compare informing and telling someone about a recent vacation you took, you’d see a subtle difference in the two approaches. With informing, you’d just stick to the facts such as where you went, with whom you went, how long you were gone, and what you did. However, with telling (or communicating), you’d cover those same details but elaborate on why you chose to go on vacation, what you enjoyed the most, and how it made you feel. You may even motivate someone else to want to take a similar vacation based on your experiences. Where informing strives to connect with just the head, communicating seeks to touch the mind and heart.

If you’re simply passing along information, and you aren’t striving to make a specific point, a neutral, passive approach is fine. However, if your goal is to share a particular insight, then just informing your audience won’t be an effective strategy. The act of informing doesn’t focus on preparing your audience to interpret and understand the meaning and significance of your key findings. An insight must be transmitted to the receiver in a manner that will draw their attention, clarify what the data means, and persuade them to act. To convey your insights in an effective manner that influences decisions and drives action, you must embrace the familiar yet powerful approach of storytelling.

Telling the Story of Your Data

Numbers have an important story to tell. They rely on you to give them a clear and convincing voice.

—Stephen Few, data visualization expert

At the beginning of this chapter, I recounted how I shared what I thought was a valuable insight with a senior executive. When I attempted to inform him of how customers felt differently about one of the ecommerce team’s core policies related to shipping, he abruptly rejected the data with a rude shout. In retrospect, I didn’t do justice to my insight because I failed to communicate it properly. It deserved more focused attention in a separate, more targeted presentation—I needed to tell the story of those numbers. Simply presenting some information and hoping it would somehow resonate with the audience was very naive on my behalf. Sadly, I don’t think I’m the only one who has stumbled across an interesting insight and then struggled to convey it in a meaningful way to others.

For change expert John Kotter, the first step in any change process is to create a sense of urgency that helps people understand why a change is necessary (Kotter 2013). When you have an opinion or feeling that something should change, it can be difficult to instill a sense of urgency without sufficient supporting information. However, by having unearthed or learned about an insight, you should already have all the raw materials—data—needed to clarify why a change must be made and what the potential repercussions will be if it isn’t made. Storytelling can further amplify the power of your numbers, providing an engaging narrative that connects the dots for your audience and compels them to act. When you craft your data insight into a data story, you have a powerful vehicle for conveying meaning, engaging your audience, and driving change (see Figure 1.4).

Figure 1.4 When you present your insights as data stories, you’re more likely to influence decisions and drive actions that lead to value creation.

The goal of this book is to help you marry the science of data with the art of storytelling. I will attempt to impart a sound understanding of why data storytelling skills are essential to anyone who wishes to share insights with other people in a more effective manner. You will learn the core characteristics of a data story, and you’ll be introduced to the three core pillars of data storytelling: data, narrative, and visuals. To prepare you for your journey toward becoming a more effective data storyteller and change agent, here’s an overview of the chapters in this book:

Chapter 2