There's another kind of graffiti artist - the deconstructivist who works reductively, peeling back layers of accumulated posters in such a way that s/he creates a completely new piece. I came across some examples that are so consistent in aesthetic & approach, that I can only conclude they're by the same artist. This is the first one I found one night on my way back to my hotel near el Prado. Unfortunately the photo doesn't do it justice - the whole piece wasn't in the frame so you miss out on the symmetrical quality of the "drawing." Nonetheless, it's pretty intricate and interesting in its composition. (Found January 28, 2009.)