This is one of the more interesting types of data visualization graphs. We say interesting not because it has a higher preference or higher illustrative capacity, but because it is one of the most argued-about types of visualization in research.
A paper by Ian Spence in 2005, No Humble Pie: The Origins and Usage of a Statistical Chart, argues that the pie chart fails to appeal to most experts. Despite similar studies, people have still chosen to use pie charts. There are several arguments given by communities for not adhering to the pie chart. One of the arguments is that human beings are naturally poor at distinguishing differences in slices of a circle at a glance. Another argument is that people tend to overestimate the size of obtuse angles. Similarly, people seem to underestimate the size of acute angles.
Having looked at the criticism, let's also have some...
