Watch Ebola spread across West Africa and beyond

Each line on the charts below represents the ranking of a player who was, at some point, number one in the world.

A county-by-county map of income inequality in America

A (responsive) county-by-county look at public aid participation in the United States

In my series of posts on responsive maps, legends and charts using D3, I used a dataset from the U.S. Census on educational attainment (by way of the new Census Reporter). That got me curious what states have a gap between men and women in who had a bachelor's degree.

Charts need to work everywhere, too. The trick is keeping track of lots of moving parts.

Legends are tricky. For a choropleth, where I’m showing a progression of values, I want a legend that shows that continuity, and I want to make the colors easy to see and compare. And I want to make it responsive, like the map.

Let's make maps and charts that resize automatically and work everywhere.

A little chart to remind me that compound interest is important.

A few years ago, I helped map the worst single-year drought in Texas history, and later the broader US drought. So I thought I’d revisit it in D3.