A pie chart with dozens of categories. Not every category has a label, it’s not clear what the total number of categories is and what the unlabelled slices refer to. Trajkova et al., Informatics ...

One technique to help you refrain from inflating the numbers is the Pie Chart Method. For example, let’s say you have a stomach ache. You go to the doctor and, despite the doctor’s belief that ...

However, a bar chart would make comparing less common diets difficult. With a waffle chart, we can see 4% of people surveyed are vegan, while 2% are pescetarian.