Award-winning author Jean Marzollo was the author of over 100 books, including the bestselling I Spy series; Help Me Learn Numbers 0-20 ; Help Me Learn Addition ; Help Me Learn Subtraction ; Pierre the Penguin ; Soccer Sam ; Happy Birthday, Martin Luther King ; The Little Plant Doctor ; In 1776 ; Mama Mama/Papa Papa ; and I Am Water ; as well as books for parents and teachers, such as The New Kindergarten . Walter Wick is the photographer of the international bestselling I Spy series as well as the author and photographer of the acclaimed Can You See What I See? series. He lives with his wife, Linda, in Miami Beach, Florida.