Evan is a super nice and friendly person. He is passionate about architecture and in particular brutalist buildings. His tour is interesting and let you see, in three hour more or less, a lot of important and beautiful brutalist architecture, thing impossible to do if you are a tourist and don’t know London so well. He also gives some notions about the history and the events and he’s open to the possibility to give you more information by email. Absolutely recommended if you are interested to see and photograph a lot of London brutalist architecture.