Mercer Mayer began writing and illustrating children's books in 1966. Since that time, he has published more than 300 titles and created the best-selling Little Critter® books. Born in Little Rock, Arkansas, Mercer Mayer moved to Hawaii as a teenager and he attended the Honolulu Academy of Arts. He later studied at the Art Students League in New York City. outside my window was one of the first picture books he illustrated. Mercer Mayer lives on the East Coast with his family, their dogs Belle and Buttercup, and Tickles the cat. He continues to write and illustrate books for children.