Their structure is based on simple logic: The largest piece of the pie should begin at the top of the circle, and the values should follow a descending order around the pie. Keys can be designed in ...

Stage two kicks off the first pie chart the second level ... continuously until the first bar graph blocks the second from going to the ground. Now, run into the hole to shrink the fifth bar ...

Doughnut charts, a close relative of the pie chart, work the same way but are shown with a hole in the middle ... but are easier to digest. Bar charts summarise data across different categories ...

Forbes contributors publish independent expert analyses and insights. I help people communicate data clearly with graphs. A data set that occurs frequently consists of the values or the percentage ...