duopress labs is the creative team, led by Mauricio Velazquez de Leon, responsible for writing and developing dozens of books and games. Recent titles include 100 Pablo Picassos; Messi: Superstar; Park; Hello, Ocean Friends; My New York Puzzle; My San Francisco Puzzle; Match it! San Francisco; and Match it! Paris. Mauricio has written for Lonely Planet, Chouette, PowerKids Press, and the magazines Gourmet and Saveur. He resides wherever he can find a good Wi-Fi connection and strong coffee, mostly in the eastern United States.Julissa Mora is a children's illustrator and surface designer living in Austin, TX. She enjoys creating whimsical scenes filled with cute and playful characters. She has illustrated a number of books, editorial publications, toy packaging designs, and puzzles, and has created work for many other applications.