After seeing and photographing the Obey faces as stickers and posters for the past several months around the city, we were in the SFMoma book store today and out of the corner of my eye, I saw a book spine that had a grid of the same face.  The Obey Giant Art collective is bigger than I thought and a compelling public art project (and subculture brand).  See my photo of the Obey sticker spotted near 4th and Bryant.  Learn more about the penetrating face at http://www.obeygiant.com