I don't know. Where does the deliberate advertising of the custom signage begin, and where does it give way to graffiti/street painting? Is this sanctioned by the business inside, or not? Or did a black wall get hit by a gang of peculiarly design-literate artists? Was there an under layer of much more mundane tagging that's been superseded by the brightly colored stuff? And - we're discussing "evidence" in tomorrow's Visual Studies class - what might one say that this was evidence of? And what evidence might one need to interpret it further? And why did I take this particular image? Peter Burke's Eyewitnessing quotes Roy Stryker, in 1940: "The moment that a photographer selects a subject, he is working upon the basis of a bias that is parallel to the bias expressed by a historian." True ... but does this tell one about anything more than my predilection for street art, and my sense of obligation to find a daily image, and - o wonderful fortuity - the fact that there wasn't any traffic coming in the opposite direction, and that I was stopped at a light?