Jory John is a #1 New York Times–bestselling author of books for both children and adults. His previous collaboration with Erin Kraan was the popular picture book, Something’s Wrong! His work also includes the New York Times–bestselling picture books The Good Egg and The Bad Seed; the award-winning Goodnight Already! series; the popular picture books This Book Will Get You to Sleep!, Penguin Problems, and Giraffe Problems. He lives in the Pacific Northwest.
Erin Kraan is the illustrator of several picture books, including #1 New York Times-bestseller, Buffalo Fluffalo by Bess Kalb, The Bear and Hare series by Jory John, and I Am Picky: Confessions of a Fussy Eater and I Am Friendly: Confessions of a Helpful Bear by Kristen Tracy. She creates her illustrations using a combination of woodcut prints, gouache paint and digital collage. She lives in Vancouver, British Columbia.