Chapman, Sital Gorasia, author. King, Steph (Primary mathematics education adviser), consultant. Rumiz, Susanna, illustrator.

Harper, Mireille, author, consultant, writer of foreword. DK Publishing, Inc.

Pagani, Balthazar, 1975- author. Ozumi, Asuka, consultant. Vanni, Silvia, illustrator. Obata, Fumio, contributor. Fortes, Edward, translator.

Micklos, John, Jr., author. Dass, Rhonda, consultant.