From 1972 to 1973, Gordon Matta-Clark took over fifteen hundred photographs of graffiti in New York. These images are among the first documentations of an emerging art form and constitute a little-recognized body of work by Matta-Clark, an artist who used the city's crumbling infrastructure to reveal the social and political implications of architecture and urbanism. This publication presents every frame of every roll of film taken by Matta-Clark, organized according to the sequence of contact sheets present in the artist's archive. Taken together, these images demonstrate Matta-Clark's obsession with the graffiti that had exploded on the city's walls, subways, and buses, and show his growing audacity as he moved from photographing on the streets and subway platforms to intruding on suburban rail yards. During these documentary missions, Matta-Clark also photographed abandoned architecture, infrastructure and the social life of the city. Also included are these images, showing the relationship between graffiti and the themes most commonly associated with the artist's work. An essay by Antonio Sergio Bessa and a text by Jonathan Lethem accompany the photographs.