ANDY GRIFFITHS is the "New York Times" bestselling author of "The Day My Butt Went Psycho!" and "The Big Fat Cow That Goes Kapow." He lives in Melbourne, Australia, and is Australia's most popular children's writer. TERRY DENTON is known for his humorous illustration style and has worked with Andy on many popular books. He lives by the sea in Australia with his wife, three kids, and a pop-up toaster that only toasts on one side.