In the thirty years since his death, Keith Haring--a central presence on the New York downtown scene of the 1980s--has remained one of the most popular figures in contemporary American art. In one of the first book-length treatments of Haring's artistry, Ricardo Montez traces the drawn and painted line that was at the center of Haring's artistic practice and with which the artist marked canvases, subway walls, and even human flesh. Keith Haring's...