Polaroid SX-70 Black BookUrban Spree Books publishes Polaroid SX 70 Black Book , an intimate collection of vintage Polaroids from the early 80s focused on New York City graffiti writers. These portraits tell the story of a pioneering graffiti generation, who went to influence generations to come through graffiti and hip hop. The book catches them at an early time, in what in retrospect seems like an age of innocence: young, free, hopeful. At the verge of commercial success,