Bradley Garrett’s next book, Subterranean London: Cracking the Capital is available to pre-order ahead of its September 2014 publication. If you don’t know Garrett’s earlier Explore Everything: Place-Hacking the City you’re missing out on one of the most interesting and best-illustrated works of urban geography in a long time.

Unfortunately not everyone agrees that Garrett’s work is worthwhile and should continue. Garrett and other urban explorers are about to stand trial in London for ‘conspiracy to commit criminal damage’ – not actual damage, which Transport for London cannot prove, but conspiracy to commit it. Will Self has a piece in the Evening Standard on the trial.