Dan Gutman is the New York Times bestselling author of the Genius Files series; the Baseball Card Adventure series, which has sold more than 1.5 million copies around the world; and the My Weird School series, which has sold more than 12 million copies. Thanks to his many fans who voted in their classrooms, Dan has received nineteen state book awards and ninety-two state book award nominations. He lives in New York City with his wife, Nina. You can visit him online at www.dangutman.com.

Tim Bowers has illustrated over thirty children’s books, including the New York Times bestsellers Dream Big, Little Pig! by Kristi Yamaguchi and Dinosaur Pet by Neil and Marc Sedaka. His artwork has received much recognition, including the Children’s Choice Award and Junior Library Guild selections. Tim lives with his wife in Granville, Ohio. You can visit him online at www.timbowers.com.