Typography is one of the easiest super important parts of civilization to take for granted. It seems like it just sprouted where it is, weed-like. But an enormous amount of effort goes into every letter—here's a visual tour.

PBS' little sprint through contemporary typography highlights several important bigwigs—perhaps most notably Jonathan Hoefler and Tobias Frere-Jones, whose work you've very likely looked at without knowing it. These people exist to make signs and sentences both beautiful and effective, and they're damn good at it. [via Laughing Squid]