Martha Cooper has documented hip-hop culture since 1980. She is the author of books such as Subway Art, New York State of Mind, Hip Hop Files, We B Girlz and Street Play. Tobias Barenthin Lindblad has editing one of the oldest, still running graffiti magazines Underground Productions, UP, since 1992. He is also the editor of numerous books like Overground, Overground 2, The Beautiful Struggle as well as the author of Overground 3. In his native Sweden he is arranging