The chart below shows the most recent market shares of each pie in the U.S. market structure. The circles are sized relative to their contribution to market-wide volumes traded.

Learn about pie charts with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

Pie charts face criticism for their misleading nature, sparking debate over data visualization methods.

The pie graph created will be flat so you will have to follow the article to see how to make it a 3D pie chart. To create the pie graph go to the left tools panel and click on the Pie chart tool.

The Graph Makeover Contest makes it clear that there are multiple ways to plot a data set with no one way being best. This post shows alternatives to a pair of donut charts.

The "spectrum" in autism spectrum disorder suggests a linear progression. Representing autism as a pie chart instead could better show the diversity of experience.

Ram Krishnan, PepsiCo CEO of North America, relies on a colorful approach to time management to navigate his responsibilities leading Pepsi, Mountain Dew and Gatorade.

It wouldn't be National Pi Day at Wonkblog without some pie charts to mark the momentous occasion. The versatile chart can be used in all sorts of situations.

Arrow charts and slope charts are alternatives to multiple pie charts when the data consist of the values or the percentage breakdown of several categories for two time periods.