The pie chart got its name honestly: It’s shaped like a pie and carved into pieces like slices. But where its namesake generally contains gooey sweetness, pie graphs are filled with chalky, boring ...

A data set that occurs frequently consists of the values or the percentage breakdown of several categories for two time periods. A common way of plotting these data is to use a pair of pie charts.

We've all seen presentations that made us wonder, "What, exactly, is that graph saying? What am I looking at?" Hopefully, we haven't all given those presentations, but let's be honest—many of us ...

We all strive to eat what’s in season. We sign up for CSAs and avoid buying nectarines from the grocery store in the dead of an East Coast winter. But seasonality shouldn’t be confined to salads. Here ...