Joan Holub has authored and/or illustrated over 200 children's books, including the Goddess Girls series and the Heroes in Training series (with Suzanne Williams); the New York Times bestselling picture book Mighty Dads, illustrated by James Dean; Little Red Writing , illustrated by Melissa Sweet; and Zero the Hero , illustrated by Tom Lichtenheld. Find Joan online at joanholub.com. Laurie Keller is the author and illustrator of many books, including The Scrambled States of America, Potato Pants!, Arnie the Doughnut, Do Unto Otters: A Book About Manners, the Adventures of Arnie the Doughnut chapter book series, and We Are Growing!, part of the Elephant & Piggie Like Reading! series and winner of the Theodor Seuss Geisel Award. Learn more about Laurie on her website lauriekellerbooks.com.