Map find 3 - Typography

I found this typography map on a blog by James Cheshire. His bio says he teaches in the geography department of University College London. It's a map of London that looks like someone started doodling in class and it turned into a very detailed map. It has a ton of information on it like a historical bit about fish jumping out of the Thames during an earthquake in 1750. You can see hospital signs, neighborhoods, and tourist locations. All the in-between spaces are filled in with text.