College of Graffiti

From the introduction:

To many, the College of Graffiti is a nuisance, a band of hooligans that vandalize about the city with no regard for the law. But bards who pick up the spray can know that graffiti is the single greatest modern art form. Graffiti artists use the entire city as their canvases, placing murals of inspiration where everyone can see them and personal tags where few will notice. Theirs is a bold, creative endeavor that, while illegal, breathes vibrancy into the city and emboldens the most impoverished within it.