Doon Arbus (born April 3, 1945), a daughter of actor Allan Arbus and photographer Diane Arbus, is a writer and journalist. Her sister, Amy Arbus, is a photojournalist. Doon was 26 when her mother died, and now manages her estate.Doon Arbus was a longtime collaborator of Richard Avedon, with whom she coauthored the books Avedon: The Sixties and Alice in Wonderland: The Forming of a Company, the Making of a Play. She has written for magazines including Rolling Stone and The Nation.