
The authors also raised the possibility that Houdini had been murdered by a cabal of Spiritualists, prompting Houdini's great-nephew to call for an exhumation of the magician's body to test for poisoning. His book The Secret Life of Houdini, written with magic historian William Kalush, presented research that attempted to prove that early 20th-century American magician Harry Houdini was a spy. He also penned Reefer Madness, a history of marijuana use in the United States, Thin Ice: A Season in Hell with the New York Rangers, a 1982 on- and off-ice account of the National Hockey League team's 1979–80 season and Steal This Dream, an oral biography of Abbie Hoffman. Sloman wrote an account of Bob Dylan's 1975 Rolling Thunder Revue tour, On the Road with Bob Dylan.

He also appears in all of Kinky Friedman's mystery novels as the Dr. He collaborated with Howard Stern on the radio personality's two best-selling books, Private Parts and Miss America. He wrote a column "Ratso's Pallazo" in Heavy Metal in 1985. He wrote for Rolling Stone, Crawdaddy, and Creem in the 1970s. His nickname Ratso came from Joan Baez who said Sloman looked like Dustin Hoffman's character Ratso Rizzo in Midnight Cowboy. Sloman was born into a middle-class Jewish family from Queens.
