I’ve mentioned before that I’m a big fan of public art, including graffiti art (basically I like anything that wasn’t commissioned, but that looks pretty good and says something, or at least one of the above). I’ve read a few articles on guerrilla art, and on guerrilla gardening, and I really love this stuff. And I want this book:

(buy it here or here, but whatever you do, see the author’s interview at The Glass Doorknob)