[edelweiss]

I usually photograph incidental street art when I travel. In the parts of Japan I have been in I haven't seen very much but I am probably not hanging out in the right places to see most of it. What I have seen seems to be pre-approved murals done in a graffiti style rather than done like an illegal street art project and lots of small scale stuff, lots of sticker tagging.

There are two books I can think of one called Graffiti Japan and another called Rackgaki: Japanese Graffiti that comes with a dvd. Both are pretty recent and have interviews with known artists. I have only seen Rackgaki myself. Worth looking into if you are interested.