Jean Marzollo was the award-winning author of over 100 books, including
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 author and photographer of the best-selling series
Can You See What I See?. Carol Carson Devine, the book designer for the first
I Spy books, is art director at Alfred A. Knopf Publishers. She has designed covers for books by
John Updike,
Joan Didion,
Alice Munro,
Bill Clinton and
Pope John Paul II. ==List of books==