Save guides, add subjects and pick up where you left off with your BBC account. A pie chart can show collected data in sectors. Each sector can be labelled, or can be colour coded with a key.

Each Saturday, Opinion columnist Philip Bump makes and breaks down charts explaining the latest in economics, pop culture, politics and more. “Imagine a pie chart that shows Visuals at 42 ...

Playfair, who is said to have invented the pie chart, includes moments such as “Rome founded”, “Mahomet’s Flight”, and “America discovered”. He never mentions slavery. With such a ...

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.