Billy Twitters and His Blue Whale Problem

Mac Barnettis the author of many books for children, includingExtra Yarn, illustrated by Jon Klassen, a Caldecott Honor Book and winner of a Boston Globe-Horn Book Award;The Wolf, the Duck, and the Mouse, aNew York Timesbestseller;Sam and Dave Dig a Hole, a Caldecott Honor Book and winner of the E. B. White Read Aloud Award. Other titles includeThe Important Thing About Margaret Wise Brown, Chloe and the Lion, How This Book Was Made, Count the Monkeys,andBilly Twitters and His Blue Whale Problem. He is the co-author, with Jory John, of theNew York Timesbestselling seriesThe Terrible Two. Mac lives in California.

Adam Rexis the multi-talented author of books for children, middle readers and young adults, as well as an accomplished illustrator. He has written such beloved picture books asSchool’s First Day of School(illustrated by Christian Robinson), has created both pictures and words for favorites likeAre You Scared, Darth Vader?, Nothing Rhymes with Orange,andFrankenstein Makes a Sandwich; and he has illustrated books by bestselling authors likeThe Legend of Rock Scissors Paperby Drew Daywalt,Chloe and the Lionby Mac Barnett, andChu’s Dayby Neil Gaiman.The True Meaning of Smekdaywas his first novel, followed bySmek for President!and other books for middle and teen readers. He grew up in Phoenix, got a BFA from the University of Arizona, and now lives in Tucson.