Guts: The True Stories Behind Hatchet and the Brian Books is a non-fiction book by Gary Paulsen, published on January 23, 2001 by Delacorte Books. It is about some of Paulsen's life adventures, including dog sledding in blizzards, being in a plane stalling in the air in the arctic, watching as a little boy gets stabbed to death by a young buck, and eating bugs. He discusses the inspirations of his life and the way they helped to create events for his character Brian Robeson in his Brian's Saga series. Source: Wikipedia (en)