Martha Cooper has specialized in documenting urban art and architecture for over forty years. Martha’s books include Subway Art, a collaboration with Henry Chalfant, R.I.P.: Memorial Wall Art, Hip Hop Files 1980-1984, We B*Girlz, Street Play, New York State of Mind, Tag Town, Going Postal, Name Tagging, Tokyo Tattoo 1970, and One Week with 1UP. Spray Nation, containing Martha’s previously unpublished New York City graffiti photos from the 1980s, will be released in the fall of 2022.