All the Harry Potter spells, when they were used

I often stare far into the distance and ponder world’s greatest questions — like when specific spells were used in the Harry Potter books. No longer. This straightforward chart by Skyler Johnson pinpoints when each spell was explicitly said in the books and what each does.

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Pizza Place Geography

Most of the major pizza chains are within a 5-mile radius of where I live, so I have my pick, …

10 Best Data Visualization Projects of 2015

These are my picks for the best of 2015. As usual, they could easily appear in a different order on a different day, and there are projects not on the list that were also excellent.

A Day in the Life of Americans

I wanted to see how daily patterns emerge at the individual level and how a person’s entire day plays out. So I simulated 1,000 of them.

Most popular porn searches, by state

We’ve seen that we can learn from what people search for, through the eyes of Google suggestions: state stereotypes, national …