Jon Klassen is the bestselling author and illustrator of The Rock from the Sky, The Skull, I Want My Hat Back, We Found a Hat, and This Is Not My Hat, which won the Caldecott Medal and Kate Greenaway Medal. He is also the illustrator of the Shapes series, Extra Yarn, which received a Caldecott Honor, Sam and Dave Dig a Hole and How Does Santa Go Down the Chimney? all written by Mac Barnett. His Shapes series with Mac Barnett has been adapted into Shape Island, a stop-motion animated TV series on Apple TV+. Originally from Ontario, Canada, Jon worked as an illustrator for feature animated films and now lives in Los Angeles, USA. Find him online as @jonklassen on Instagram.