![]() Gestalt Principles of Visual Perception has six principles: Signal is the information we want to communicate.Ĭlutter are visual elements that take up space but don’t increase understanding. Nancy Durante in her Resonate refers to maximizing the signal-to-noise ratio. Cognitive load can be thought as the mental effort that’s required to learn new information.Įdward Tufte refers to the data-ink ratio – the larger the share of a graphic’s ink devoted to data, the better (other relevant matters being equal). We experience cognitive load anytime we take in information. With donut chart, we are asking our audience to compare one arc length to another arc length. With pies, we are asking our audience to compare angles and areas. You really should avoid: pie charts, donut charts, 3D and secondary y-axis. An infographic is simply a graphical representation of information of data. Infographic is a term that is frequently misused. Always be thoughtful about how categories are ordered.Īrea graphs – avoid at all costs, except when you need to visualize numbers of vastly different magnitudes. It is especially useful if category names are long. Horizontal bar chart is go-to category, since they are really easy to read. The waterfall chart can be used to pull apart the pieces of a stacked bar chart to focus on one at a time, or to show a starting point, increase and decrease, and the resulting end point. They can be absolute numbers or percentage. Stacked vertical bar charts are meant to allow you to compare totals across categories and also see the subcomponent pieces within a given category. The plan vanilla bar chart is the vertical bar chart. In general, the bars should be wider than the white space between bars. When graphing data, a common decision to make is whether to preserve the axis labels or eliminate the axis and instead label the data points directly. Only with line graph you can get away with no zero baseline. It is important to always have a zero baseline, otherwise you get a false visual comparison. Slope graph is best used when you have two time periods or points of comparison and you want to quickly show increase or decrease of difference.īars – are sometimes avoided because they are common. The line graph can show a single series of data, two series or multiple. We have standard line graph and slope graph. Often is in some unit of time: days, months, years. Lines – are most commonly used to plot continuous data. Points – scatterplot can be useful for showing the relationship between two things. Chart is the broader category, including graphs, but also maps and diagrams. They fall into four categories: points, lines, bars and area. Graphs – interact with our visual system. You should use legend to help reader interpret the data. Heatmap – we can use color saturation to provide visual clues. The data should be what stands out, not the borders. Borders should be used to improve the legibility of your table. Using a table in live presentation is rarely a good idea. It is also easier to communicate multiple different units of measure. Tables are great communicating to a mixed audience whose members will each look for their particular row of interest. Tables – interact with our verbal system, which means that we read them. Any time you reduce from multiple numbers down to a single one – think about what context may be lost in doing so. The fact that you have some numbers does not mean that you need a graph. Simple text – when you have just a number or two to share, simple text can be a great way to communicate. Storyboarding creates structure of your presentation. Nancy Durante discusses this concept in her book Resonate. ![]() The Big Idea boils the do-what down even further: to a single sentence. The 3-minute story can help with being concise. Blaise Pascal: “I would have written a shorter letter, but I didn’t have the time.” While it sounds easy, being concise is often more challenging than being verbose. Avoid slideument – when both slide decks and documents are meant as one, single document. They can remind you of next topic, but they should not act as speaking notes. Mechanism is about how will we communicate to our audience. If you cannot propose action directly, encourage discussion toward one. You should always aim for your audience to know or do something. Narrow your audience, you cannot talk to too many different people with disparate needs. How can we use data to help make our point?.What do we want our audience to know or do?. ![]() But in visualization we are all about explanatory. We have exploratory and explanatory analysis. Data visualization and communicating with data in general sits at the intersection of science and art. Understanding situational context including the audience, communication mechanism and desired tone, is important. There are six elements that are important for good storytelling: ![]()
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