Matthew Christian Reinhart attended Pratt Institute in Brooklyn as an industrial design major (concentrating in toy design). Pratt was fantastic experience for him, but his initial dreams of being a toy designer soon transformed into paper engineer. After working with Robert on books like The Wonderful Wizard of Oz, A B C Disney, and Movable Mother Goose. Matthew made his first big break into the pop-up world with The Pop Up Book Of Phobias. Many books collaborations have followed, including a trilogy of New York Times best-selling Encyclopedia Prehistorica and the following series Encyclopedia Mythologica with Robert Sabuda, along with Mommy?, co-authored with the renowned Maurice Sendak and Brava Strega Nona with the ageless Tomie DePaola. His solo pop-up books include The Ark, Animal Popposites, The Jungle Book, Cinderella, The Pop-Up Book of Nursery Rhymes, and STAR WARS: Pop-Up Guide to the Galaxy. He continues to work and live in New York City, cutting, taping and folding paper into pop-up masterpieces.