 Much of the material is drawn from taped interviews Hackett did with Warhol specifically for the book, and also from conversations Warhol had taped between himself and Colacello and Brigid Berlin.Warhol promoted the book in September 1975 on a nine-city U.S. book tour, followed by stops in Italy, France, and England.In October 2019, an audio tape of publicly unknown music by Lou Reed, based on the book, was reported to have been discovered in an archive at the Andy Warhol Museum in Pittsburgh.