Foka Wolf is the name of an anonymous street artist/provocateur whose works have earned him the nickname (in my house anyway) "the Brummie Banksy" - even though his identity remains a closely guarded secret. His posters which mostly appear in Birmingham and London are almost always funny, and sometimes carry a political message. At other times, they're just surreal - witness the adverts for "Voodoo Classes For Kids" that have appeared in Shoreditch and Brum's Canon Hill Park. This is his first broadcast interview. Check out his instagram @fokawolf