'Another great book in T&H's ongoing, unofficial series documenting the rise and rise of graffiti and street art ... The transience and vulnerability of the medium makes the recording of these images of immense value, and the only way a wider audience is able to appreciate the art is through the pages of superior documents like this. Inspirational' - State of Art '... an authoritative overview of a vibrant and global art scene ... much more than a picture book' - Blueprint In hundreds of illustrations, this book celebrates the amazing variety and ingenuity of today research in many cities.