Andrew Wiseman’s “When Maps Lie” was posted on CityLab last year, but its importance is evergreen: it’s about map literacy, and how to avoid being fooled by confusing, misleading or simply bad maps. This is very much what Mark Monmonier did in How to Lie with Maps (see my review; Amazon, iBooks); Wiseman updates it for the social media age.

Maps are big these days. Blogs and news sites (including this one) frequently post maps and those maps often go viral—40 maps that explain the world, the favorite TV shows of each U.S. state, and so on. They’re all over Facebook, Twitter, and Tumblr, and news organizations are understandably capitalizing on the power that maps clearly have in digital space: they can visualize a lot of data quickly and effectively. But they can also visualize a lot of data inaccurately and misleadingly.

It’s a must-read. [via]