Cool Infographics: Effective Communication with Data Visualization and Design
By Randy Krum
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About this ebook
Make information memorable with creative visual design techniques
Research shows that visual information is more quickly and easily understood, and much more likely to be remembered. This innovative book presents the design process and the best software tools for creating infographics that communicate. Including a special section on how to construct the increasingly popular infographic resume, the book offers graphic designers, marketers, and business professionals vital information on the most effective ways to present data.
- Explains why infographics and data visualizations work
- Shares the tools and techniques for creating great infographics
- Covers online infographics used for marketing, including social media and search engine optimization (SEO)
- Shows how to market your skills with a visual, infographic resume
- Explores the many internal business uses of infographics, including board meeting presentations, annual reports, consumer research statistics, marketing strategies, business plans, and visual explanations of products and services to your customers
With Cool Infographics, you'll learn to create infographics to successfully reach your target audience and tell clear stories with your data.
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Reviews for Cool Infographics
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Book preview
Cool Infographics - Randy Krum
1
The Science of Infographics
Why do people love infographics?
Humans have been drawing pictures to communicate with each other for thousands of years—from pictograms on cave walls to Egyptian hieroglyphics to ideograms on modern signs (Figure 1-1). People love using pictures to communicate and tell stories because it’s hardwired into the human brain.
c01f001.tifFIGURE 1-1: Altamira bison cave painting, ancient Egyptian hieroglyphics, and modern signs.
Infographics and data visualizations are all around us. We are surrounded by visual representations of information—charts, maps, icons, progress bars, signs, posters, diagrams, and online visuals (Figure 1-2). These are all examples of visual communication, but these are not all infographics.
c01f002.tifFIGURE 1-2: Collage of infographics and data visualizations
The word infographic is used by people to mean many different things. In many cases infographics and data visualizations are considered synonymous, but in the world of an infographic designer they mean different things.
Data visualizations are the visual representations of numerical values. Charts and graphs are data visualizations and create a picture from a given set of data. Figure 1-3 shows the price chart of the S&P 500, the Nasdaq, and the Dow Jones Industrial Average since 1950. The reader can easily see the overall upward trend and the comparison between the three data sets. Including the volume chart beneath the price chart, this data visualization creates a picture using at least 80,000 data points.
c01f003.tifFIGURE 1-3: Stock price chart
It takes us only seconds to understand the long-term trend, to see the close relationship between the three indices, and to see the significant spikes and falls in the stock market. This visualization easily fits on one piece of paper, a computer screen without scrolling, or a presentation slide. Seeing the entire data set on one page, we can understand the data quickly and with little effort.
This is an efficient way to communicate data. Data visualizations can be very space efficient by visualizing a large set of numbers in a small space. By designing a visualization that displays all of the data within the readers’ field of view, this enables us to see the entire data set with minimal eye movement without scrolling or flipping between pages.
If we looked at a spreadsheet with 80,000 values instead, how long would it take us to get a general understanding of the market?
In 2001, Dr. Edward R. Tufte, one of the pioneers of modern data visualization and professor emeritus of political science, statistics, and computer science from Yale University, clearly explained this phenomenon when he stated, Of all methods for analyzing and communicating statistical information, well-designed data graphics are usually the simplest and at the same time the most powerful.
[1]
This screen shot (Figure 1-4) from the StockTouch app on an iPad is another example of a good data visualization design. The top 100 largest U.S. stocks are shown from nine different market sectors. In this view, the companies from each market segment are organized in a spiral pattern from largest (in the center) to smallest. Each stock is color coded based on its stock price performance over the prior 12 months, but the time period is adjustable with the slider on the right. The shades of green show stock prices that have increased, and shades of red show prices that have decreased.
c01f004.tifFIGURE 1-4: Heatmap visualization of stock price changes
coolinfographics.com/Figure-1-4
Source: StockTouch iOS app, Visible Market, Inc.
Whether it’s a new definition or an additional definition of the term infographics, its use now implies much more than just a data visualization. Up until recently, a common definition for infographics was simply a visual representation of data
; however, that definition is outdated and is more indicative of data visualizations. Originally derived from the phrase information graphics, infographics was a term used in the production of graphics for newspapers and magazines.
Today, the use of the word infographics has evolved to include a new definition that means a larger graphic design that combines data visualizations, illustrations, text, and images together into a format that tells a complete story. In this use of the word, data visualizations by themselves are no longer considered to be complete infographics but are a powerful tool that designers often use to help tell their story visually in an infographic.
This new definition of infographics is used consistently throughout this book. and data visualizations are meant as a separate design element used within the design of infographics. The art of data visualization is a huge topic about which many books have been written and is taught in many university classes. For the purposes of this book, they are not synonymous.
As shown in Figure 1-5, charts were the primary design element used to create the infographic, Could You Be a Failure? The designer, Jess Bachman (byjess.net), combined data visualizations (line charts), along with text, illustrations, and a photo of a Sharpie marker into this complete infographic design. The overall design is considered to be one infographic that uses many data visualizations in its design.
c01f005.tifFIGURE 1-5:
Infographic design made from 10 data visualizations
coolinfographics.com/Figure-1-5
Source: Could you be a Failure? from Jess.net and Smarter.org
However, the best infographics tell complete stories. Infographics have become more like articles or speeches than charts. Their purpose can be categorized into the same three objectives as public speaking: to inform, entertain, or persuade the audience. They have introductions to get readers’ attention, so the readers know why they should take the time to read the infographic. They end with conclusions and calls to action, so the readers have some indication of what they should do with the information they have just learned.
This is how many would-be designers end up designing bad infographics. Many designs simply put a bunch of data visualizations on the same page without a cohesive story. They include all the data available, instead of choosing only the data relevant to a central storyline. The process of good infographic design is about storytelling and not about just making your data visualization pretty or eye-catching.
The term infographics is also becoming mainstream. Thirty years ago, the word was only used by art directors and print publications, but the Internet has changed that. Figure 1-6 (based on data from Google Insights for Search) shows that the last 3 years (2010–2012) has seen extraordinary growth in people searching for the term infographic. The Internet is turning infographics into a household word.
c01f006.tifFIGURE 1-6: Growth of search for the term infographic
Information Overload
We are all confronted with an immense amount of data and information every day—news, advertisements, e-mail, conversations, text messages, tweets, books, billboards, signs, videos, and of course the entire Internet. The challenge we face is to filter out the junk, focus on the relevant information, and remember the important stuff.
It’s a push-pull problem. We are actively seeking information, and at the same time, companies and advertisers are pushing their information at us.
The Rise of the Informavore
The first part of this problem is that people are constantly looking to find new information. In a real sense, we are our own enemy. We are confronted by most of the information because we look for it. The simplified reason for this is that we want to be better informed so we can make better decisions.
In 1983, George A Miller[2], one of the founders of the field of cognitive psychology, coined the term informavore to describe the behavior of humans to gather and consume information (Figure 1-7). It was later popularized by philosopher Daniel Dennett[3] and by cognitive scientist Steven Pinker[4]. Miller states, "Just as the body survives by ingesting negative entropy, so the mind survives by ingesting information. In a very general sense, all higher organisms are informavores."
c01f007.tifFIGURE 1-7: The evolution of the informavore
In 2000, technology writer Rachel Chalmers[5] wrote, We’re all informavores now, hunting down and consuming data as our ancestors once sought woolly mammoths and witchetty grubs.
She wrote that description as part of her article on how researchers at Xerox’s Palo Alto Research Center in California were investigating how people find information on the Internet by using anthropology to compare them to the foraging habits of early humans. Here’s the condensed version: The results were that the two behaviors were similar.
This behavior of hunting for information is not new. Humans have been driven to gather new information since before recorded history. It’s a major reason that humans have not only survived, but also have developed the advanced civilization that exists today. How to grow better crops, how to build better weapons, and how to survive the winter, successfully hunting for more food, killing invading enemies, and so on. Our species thrives because we are constantly learning and improving.
There is also an immense amount of pressure to make better decisions. Why do people still make poor choices when this massive library of human knowledge is available? For example, people are pressured to research products before making purchase decisions because price comparisons, promotional offers, star ratings, customer reviews, expert recommendations, feature comparisons, and third-party testing results are easily available.
Part of this behavior is that people want to be perceived by others as having made good, well-informed decisions. It might take days to decide which is the best, new microwave to buy because we respond to this pressure by doing more research. We need more data, so we go looking for it.
The Rise of Big Data
We live in the Information Age. People have more information at their fingertips than at any time in history, and this problem is going to get worse (or better, depending on your point of view). It’s like putting a starving man in a Las Vegas buffet restaurant. We see this growth in data all around us; however, it’s hard to quantify how much information we see every day.
On average, we are exposed to the information equivalent of 174 newspapers every day (assuming an 85-page newspaper). This research by Dr. Martin Hilbert[6] at the University of Southern California looked at the state of information capacity in 2007, and the results represented an incredible growth when compared to the information equivalent of only 40 newspapers per day in 1986 (Figure 1-8).
c01f008.tifFIGURE 1-8: We are exposed to the information equivalent of 174 newspapers of information every day
Another way we can estimate the sheer magnitude of information is by measuring the amount of data that moves across the Internet. First, here’s a quick reminder of how data is measured. In Figure 1-9, the tiny yellow square in the bottom-left corner represents 1 gigabyte of data (a single pixel on the computer screen). The larger, blue square represents 1 terabyte of data, and the big, purple square represents 1 petabyte. Each square is 1,024 times larger than the previous square.
c01f009.tifFIGURE 1-9: The size of a petabyte
Estimates from 2008 are that Google was processing 24 petabytes of data each day[7] and that the entire written works of mankind, from the beginning of recorded history, in all languages would be a total of 50 petabytes.[8]
With the size of a petabyte in perspective, the Cisco Visual Networking Index[9] makes more sense. Figure 1-10 shows you the historical Internet traffic that has been measured and leads up to the future projection of more than 120,000 petabytes per month by 2017.
c01f010.tifFIGURE 1-10: Global Internet traffic growth
The amount of data available in the modern world can be measured in many ways, but they all indicate that it will continue to increase.
Why Infographics Work
So, how can we cope?
There are a number of reasons why visual information is a more effective form of communication for humans. The main reason is that vision is the strongest form of input that we use to perceive the world around us. In his book Brain Rules, developmental molecular biologist John Medina states, Vision is by far our most dominant sense, taking up half of our brain’s resources.
[10]
Studies estimate that between 50–80 percent of the human brain is dedicated to forms of visual processing,[11][12] such as vision, visual memory, colors, shapes, movement, patterns, spatial awareness, and image recollection.
Pattern Recognition
Humans are pattern recognition machines. Yes, this comes from the evolution of a survival instinct. To survive, humans needed to see a situation and react appropriately in mere seconds. We can see the scene from the photo in Figure 1-11, recognize the lion hiding in the grass, understand the mortal danger we may be in, and start running away in a fraction of second.
c01f011.tifFIGURE 1-11: Lion hiding in the grass
Visualizing data taps into this pattern recognition ability and significantly accelerates the understanding of the data.[13] You can look at a chart of data presented and understand it quickly by seeing the patterns and trends. This is a much faster way to comprehend information compared to reading numbers, comprehending the math, and then imagining in your mind how the numbers relate to each other.
The human ability to see patterns and trends quickly is the major reason why data visualizations are so powerful as components of infographic design.
The Language of Context
Data visualization is the language of context, which is all about showing multiple values in comparison to each other to provide context for the reader. If we see a number in text by itself, we don’t know how to understand it.
Figure 1-12 shows a numeric value in text by itself. In isolation, the brain doesn’t know how to comprehend this value. Is it big or small, good or bad, increasing or decreasing? You don’t know. If no context is provided, your brain tries to provide context from your own experiences. You may think: "There are a lot of digits, so it looks like it might be a big number. I know there are about 500 kids in my son’s school, so this number sounds very big in