I was only going to post one of these, but they're so great, you should see at all of them! (via)
Meet Clarendon:
-created by Robert Besley in 1845
-based on Antique and Egyptian slab serifs; now considered a style of its own
-popularized in the era of wood type and the Wild West; ubiquitous use in 'Wanted' posters
Meet DIN:
-stands for Deutsches Institut für Normang (German Institute for Standardization)
-created in 1905 for the Prussian railways; redrawn by D. Stempel AG and released as DIN in 1923; adopted in 1936 by Germany government and renamed DIN 1451; polished in 1995 by Albert-Jan Pool and renamed FF DIN
-widely used today for its lean, geometric lines
Meet Futura:
-created by Paul Renner between 1924 and 1926
-based on the Bauhaus philosophies of simple geometric forms and proportions
-one of the most used sans serif fonts today
Meet Gill Sans:
-designed by Eric Gill in 1928
-inspired by Johnston font; based on classic roman proportions
-called the "Helvetica of England"
Meet Gotham:
-designed by Tobias Frere-Jones and Jonathan Hoefler in 2000 for GQ magazine
-based on post-war signage and lettering around New York City
-after GQ's exclusive license ended, it became hugely popular, most recently during Barack Obama's 2008 presidential campaign
-deemed by USA Today as the "font of the decade"