Jon Klassen grew up in Niagara Falls, Canada, and now lives in Los Angeles, California. He is the Caldecott Award-winning author and illustrator of I Want My Hat Back and This Is Not My Hat, as well as the illustrator of Sam and Dave Dig a Hole and Extra Yarn by Mac Barnett; The Dark by Lemony Snicket; House Held Up by Trees by Ted Kooser; Cats' Night Out by Caroline Stutson; and the first three books in the Incorrigible Children of Ashton Place series.