Dig, Scoop, Ka-Boom!

Joan Holub has authored and/or illustrated over 140 children's books, including the Goddess Girls series, the Heroes in Training series, the New York Times bestselling picture book Mighty Dads (illustrated by James Dean), and Little Red Writing (illustrated by Melissa Sweet). She lives in North Carolina and is online at JoanHolub.com.

David Gordon has done visual development for numerous production companies from Lucasfilm to Pixar, including Toy Story; Monsters, Inc.; A Bug's Life; Cars; BlueSky's Robots; and Nickelodeon's Spongebob Squarepants. He's also written and illustrated several picture books, among them Hansel and Diesel, The Three Little Rigs, The Ugly Truckling, and Smitten. He's one of the illustrators of Jon Scieszka's fifty-two-book, New York Times bestselling series, Trucktown. Visit him at IllustratorRanch.com.