Indeed, the handsome Book "the Hip-Hop Files: Photographs, 1979-1984" by Martha Cooper serves as a an open and closed door to what seemed a trend to many documentarians during the late 70's and early 80's. It isn't no coinsidence that Coopers photographs document Graffiti art during a period when the NY Art World was exploiting Urban aerosal artists. It is also very clear that she stopped documenting Graffiti when the "trend" ended in 1985. Though Coopers work documents a moment in time when aerosal art was King and Hip Hop was not yet a corporate advertisement, she does come off as an outsider/tourist when asked about documenting Graffiti, "I'm sure wildlife photographers feel the same way" about photographing animals when they run around. There is also the claim, by her publisher and graff-artists that she was the first photographer to document the origins of Hip-Hop. Jamell Shabazz's book "Back in The Days" never made such a claim nor did it need the fanfare that Coopers book fabricated. Jamell Shabazz,like Debra willis, Martin Chambi and James VanDerZee, documented a personal life and environment in New York before and after the trend came and went. Something to keep in mind!