John Cena is a #1 New York Times bestselling author, multifaceted entertainer, and dedicated philanthropist. He is a longtime WWE superstar, and his films include Ferdinand; F9, the next installment of the Fast and the Furious series; and The Suicide Squad and its spinoff TV show, Peacemaker. Inspired by Richard Scarry—one of his favorite children’s book creators—Cena is the author of the Elbow Grease series of picture books and Do Your Best Every Day to Do Your Best Every Day.
Valeria Petrone is an award-winning illustrator. Her numerous picture books include Red Truck, Blue Boat, and Yellow Copter (all by Kersten Hamilton) and a series by Gianni Rodari (Edizioni El). She does editorial illustration for newspapers and magazines as well as advertising and anima- tion. She also pursues a career as a painter, and her artworks have been exhibited in Italy and abroad. She lives in Milan, Italy.