Paul Giganti, Jr., teaches mathematics to teachers at the University of California at Berkeley. He is himself a graduate of UC Berkeley, with a degree in mathematics, and he taught in the public schools for fifteen years. He lives with his family in Albany, California.
Donald Crews is the renowned creator of many celebrated children's books, including the Caldecott Honor Books Freight Train and Truck . He and his wife, Ann Jonas, live in New York's Hudson River Valley.Donald Crews es el renombrado autor de dos libros merecedores del premio Caldecott, Tren de carga ( Freight Train ) y School Bus . Vive con su esposa, Ann Jonas, cerca del R�o Hudson, en Nueva York.