Discover the street art scene in London, Melbourne, San Francisco and 39 other cities around the world through vivid photography. From Banksy's stencils and Invader's mosaics to amazing murals, this insider's guide provides practical details and maps of where to find secret stashes of street art, and introduces key artists, festivals and locations. Street art is now present in almost every city, town and village in the world, from Aachen to Zwolle. Its true audience is measured in the billions. And given that the first record of homo sapiens painting on walls is thought to date back around 40,000 years, it's surprising that street art has taken so long to flourish. Today, the proliferation of legal walls and organised festivals around the world makes it possible to encounter thought-provoking, transformative art in the most unexpected of places. This visual guide to the world of street art takes in the scene in over 40 cities and includes interviews with some of the most prolific and w