The London Underground Roundel celebrates its 100th birthday this autumn. It's one of the most recognisable logos in use today. It was perfected nine years after its conception by Edward Johnston in 1917 and has unofficially grown to become an icon for London itself.

To celebrate this centenary Transport for London have commissioned 100 contemporary artists to create artwork inspired by the famous logo. I've picked a few of my favourites above, but you can see all 100 at the Rochelle School in Shoreditch, and they'll be on display until the 30th of October.

Artwork (top to bottom, left to right) James Ireland, Pen & Tape Roundel; Torsten Lauschmann, Balaclava & Sweatband; Henry Coleman, Poster design (Venn Roundel); Lothar Hempel, UNDERGROUND (all 2008)