And here’s part two of Jay Foreman’s history of London Tube’s map, which looks at its post-Beck existence and increasing clutter and complication. (To say nothing of Beck’s post-map existence.) Part one is here.

Previously: Unfinished London: History of the Tube Map; Kenneth Field: ‘Dump the Map’; So the Launch of the New Tube Map Seems to Be Going Well; Tube Map Adds Thameslink Stations, Becomes More Even Complicated; Has the Tube Map Become Too Complicated?