Last week, we showed you some of the ways designers get creative – perhaps too creative – with bar charts. Another visualization element that is often customized to match a look and feel of a graphic is the pie chart.
Radial charts are already on the fringe of effective data visualization when compared to cartesian charts, but there are cases where they can still be used beneficially. Unfortunately, designers often add their own twists that damage the effectiveness of pie charts.
Let’s take a look at nine of the tweaks that designers make to pie charts, and dissect if and how they are harming the communication of the data.