Rob Bailey talks through creating over 40 posters for London Underground

London Transport Museum shows 150 beautiful and innovative Tube posters

Subway Stations Poster

Poster, London History at the London Museum, for London Underground, 1922 (CH 18447525)

Poster, London History at the London Museum, for London Underground, 1922 (CH 18447525-2)

Poster, The Royal United Service Museum, for London Underground, 1921 (CH 18447459-2)

Tokyo Underground Railway Poster

15 artists create new work to mark London Underground's 150th birthday

The London Poster Project

Poster, Museum of Practical Geology, for London Underground, 1921 (CH 18447411)

Poster, Museum of Practical Geology, for London Underground, 1921 (CH 18447411-2)

Poster, Victoria and Albert Musuem, for London Underground, 1921 (CH 18447435-2)

Five designers making remarkable music posters