This post is an aside to my main post on pie charts.
In my quest to understand this controversy I ended up reading a number of research papers on the topic. Here in chronological order are a few notes from relevant ones:
1984: I covered Cleveland and McGill’s seminal work on graphical perception1 in my main article […]
It seems to have become a truism in data visualization that pie charts are to be avoided. A Google search for “avoid pie charts” returns 1.4 million results. At the top of the list are articles with titles ranging from the extreme (Pie Charts are the Worst) to the fanatical (Death to Pie Charts). This […]