Barbara Barbieri McGrath has written over twenty books for children, including The Little Gray Bunny , The Little Red Elf , 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. She lives in Natick, Massachusetts. Peggy Tagel's bright, colorful cutpaper illustrations have been reproduced for a variety of products, including cards, gift wrap, children's books, and magazines. She illustrated all seven books in the First Celebrations series. She lives in North Port, Florida.