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I just came across this one on Flavor Pill, and wish I saw it earlier to go to the opening! I guess I'll have to make it there before it closes. Greg Lamarche is having a show at White Walls gallery in SF of his typographic collages. They're a little reminiscient of Rex Ray, but has his own style that goes towards graffiti art too.
From what I can tell from his website and other internet sleuthing, he's a graffiti artist from New York who got his inspiration from the urban typography of the subway trains.