Barbara Barbieri McGrathhas written over twenty books for children, includingThe Little Gray Bunny,The Little Red Elf,The Little Green Witch, and many bestselling math concept books.Her love for writing, children and making learning fun was the inspiration for her first children's book,The M&M Brand Counting Book, which sold over 1 million copies.Shelives in Natick, Massachusetts. Tim Nihoffis the illustrator of Otter Everywhere (Candlewick). He is also a graphic designer and sculptor who creates toys, furniture, and other "fun fine art" from found objects. Tim lives and works on a small island in Maine.