2013 - The Pythagorean Theorem for Babies [Math for Babies] (Paperback) ISBN-13: 9781482000580 ISBN-10: 148200058X Genres: Children's Books, Science & Math ? 2012 - Noneuclidean Geometry for Babies [Math for Babies] (Paperback) ISBN-13: 9781480203242 ISBN-10: 1480203246 Genre: Science & Math ? |