Jory John is a #1 New York Times -bestselling author and a two-time E. B. White Read-Aloud Honor recipient. His work includes the New York Times -bestselling picture books The Bad Seed and The Good Egg ; the award-winning Goodnight Already! series; and the popular picture books Something's Wrong! , Nothing's Wrong! , This Book Will Get You to Sleep! ,and Giraffe Problems , among many other books. He lives in Oregon. Learn more at joryjohn.com . Olivier Tallec is a children's book author and illustrator and is a graduate of the École Nationale Supérieure des Arts Appliqués in Paris.

He has illustrated more than 200 books for children, including This Book Will Get You to Sleep! , Who Done It? , I Always Wanted One , and It's MY Tree . He lives in France.