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This pie chart shows the results of a usability study focusing on bailout rates (a bailout occurs when a reader leaves the Web site without making a reservation) for different sections of a car-rental company's Web site. The use of three dimensions makes the programs and services slice appear bigger than the home slice, even though it isn't. The slices are arranged in a seemingly random order. Finally, the slices lack labels.
Ineffective
Figure 3. Bailout Rates for Different Sections of Our Web Site
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Revised
The chart below shows an improved version of the same information. In this improved chart, data are shown in only two dimensions, slices are arranged from biggest to smallest, and labels are added inside the slices to show both the category and the percentage that each slice represents.
Figure 3. Bailout Rates for Different Sections of Our Web Site
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