Pie charts show percentages as a circle, divided into segments. A pie chart could be used to show how students travel to school. Each piece of data is shown as a proportion of 360, because there ...

Pie charts show percentages as a circle divided into segments. A pie chart could be used to show how students travel to school. Each piece of data is shown as a proportion of 360, because there ...

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.

To ensure charts and graphs are compliant with ADA standards, please use alt text to describe the nature or content of the data shown. If a chart is too complex to explain properly through alt text ...

Geek Chart surveys your activity on the services and social networks—specifically, that's Twitter, YouTube, Flickr, any blog with an RSS feed, Digg, StumbleUpon, Delicious, and Last.fm. Creating ...

William Playfair, the father of data visualisation, changed the way we understand information. His bar graphs, pie charts, and line graphs remain essential tools today, yet his name is barely known.

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 ...