Pie charts are one of the simplest ways to visualize information. 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 ...

Pie charts are a great way to present numerical data because they make comparing the magnitude of various numbers quick and easy, while also making the larger data set appreciable at a glance.

A pie chart can show collected data in sectors. Each sector can be labelled, or can be colour coded with a key. When drawing a pie chart, a protractor will be used to draw the angles accurately.

Keep an extra ball or two of this easy master pie dough in your freezer for great pies any time. Get the recipe at Food & Wine.

That ain’t a half! Narrator: And it’s because pie charts are so good at showing information, so easy to read, that you’ll find they’re used a lot. So, you’d better know how they work!