Andy Griffiths is the New York Times bestselling author of The Treehouse Books (The 13-Story Treehouse, etc.), The Day My Butt Went Psycho!, and The Cat on the Mat Is Flat, among others. In 2007, he became the first Australian author to win six children's choice awards in one year for Just Shocking!.
Terry Denton is known for his humorous illustration style and has worked with Andy on The Treehouse Books, The Big Fat Cow That Goes Kapow, and many more.