Novelist, screenwriter, and journalist, Jerry Stahl has written nine books, including the novels Perv, Pain Killers, Happy Mutant Baby Pills, the highly acclaimed and bestselling I, Fatty--optioned by Johnny Depp--and his latest collection of personal essays, OG Dad. He has written for a variety of publications including Details (where he was Culture columnist), The Believer, The New York Times, and Esquire, and is the recipient of a Pushcart Prize for short fiction. Stahl is that rarest of writers, one whose work has been embraced by both the underground and mainstream alike. His extensive film and TV credits range from the X-rated cult classic Cafe Flesh to ALF, the highest-rated episode of CSI to the HBO film Hemingway & Gellhorn. Stahl has taught at Sylmar Juvenile Hall and San Quentin. Most recently, he writes for the IFC series, Maron, and is completing a new novel, Ten-Cent Apocalypse. Nic Sheff is a recovering drug addict and alcoholic. Still in his early twenties, he continues to fight daily battles with his addictions. His writing has been published in Newsweek, Nerve, and the San Francisco Chronicle. Tweak is his first book. Both Stahl and Sheff live in Los Angeles.