Mac Barnett is a New York Times bestselling author of many books for children, including Extra Yarn, illustrated by Jon Klassen, which won a 2013 Caldecott Honor and the 2012 Boston Globe-Horn Book Award for Excellence in Picture Books and Battle Bunny, his New York Times- bestselling picture book written with Jon Scieszka. He also writes the Brixton Brothers series of mystery novels. Jory John is a writer, editor, and journalist. He is the co-author of the bestselling All My Friends Are Dead and the editor of Thanks and Have Fun Running the Country: Kids' Letters to President Obama. Kevin Cornell is the illustrator of many children's books, including Count the Monkeys and Mustache!, both by Mac Barnett.