MacBarnett  is a New York Times bestselling author of over 18 books for children, including two Caldecott-Honor-winning collaborations with Jon Klassen: Sam & Dave Dig a Hole and Extra Yarn, which also won the Boston Globe-Horn Book Award and the E.B. White Read-Aloud Award. He writes the Brixton Brothers series of mystery novels and, with Jory John, The Terrible Two. He lives in Berkeley.