As a writer, he has published a collection of short stories and several novels, including "Thumbsucker", which was made into a 2005 film featuring Keanu Reeves and Vince Vaughn; "Up in the Air", which was made into a 2009 film directed by Jason Reitman; and "Mission to America". The film adaptation of "Up In The Air", which starred George Clooney and Anna Kendrick, was a commercial success and went on to receive critical acclaim as well as numerous nominations and awards. In 2005, he took over blogger Andrew Sullivan's publication for a few weeks while Sullivan was on vacation. He also wrote "The Unbinding", an Internet-only novel that was published in "Slate" magazine. His most recent work, "Blood Will Out", is a personalized account of his relationship with the convicted murderer and imposter Clark Rockefeller.