Colin Woodard’s “Up in Arms” breaks down North America into eleven “nations” or regions with distinct attitudes towards violence, gun control, and capital punishment, tracing those differences back to the historical origins of the first groups to settle there. Plus it comes with a nifty map.

Neil Freeman’s Electoral College Reform map is now on sale. I’m still wondering what happens to the boundaries of his fifty new states when the population centers drift.

And this 1879 railway map of the Chicago to San Francisco Burlington Railroad is pretty neat too.