Roxie Munro
Roxie Munro talks about her new book, Rodent Rascals.

Common Core State Standards
I Like to Read Books
Holiday House eBooks

Jean Marzollo

Jean Marzollo is the award-winning author of over 100 books for children, including the I Spy series. Her Holiday House books include Help Me Learn Subtraction, Help Me Learn Numbers 0-20, Help Me Learn Addition, and The Little Plant Doctor: A Story About George Washington Carver.

Born and raised in Manchester, Connecticut, Jean always enjoyed reading. A graduate of the Harvard Graduate School of Education, Jean was a high school English teacher, the assistant director of Harvard’s Project Upward Bound, the director of publications for the National Commission on Resources for Youth, and, for over twenty years, the editor of Let's Find Out Magazine.

In addition to books for young readers, Jean has written books for teachers and parents, and is the author of numerous articles written for Parents Magazine, Redbook, and other parenting publications.

Jean Marzollo, the mother of two grown sons, lives with her husband Claudio Marzollo in New York State’s Hudson Valley. Visit the official Jean Marzollo website at

Books by Jean Marzollo

Help Me Learn Addition, Reinforced
Help Me Learn Addition, Paperback
Help Me Learn Numbers 0-20, Reinforced
Help Me Learn Numbers 0-20, Paperback
Help Me Learn Subtraction, Reinforced
Help Me Learn Subtraction, Paperback