The Guardians of Childhood is a series of children's picture books and novels and the inspiration for DreamWorks' Rise of the Guardians adaptation. The books are written and illustrated by author William Joyce, whose other works include George Shrinks, Santa Calls, A Day with Wilbur Robinson, and the much loved Rolie Polie Olie series, which has earned Joyce three Emmy awards.
The series currently consists of five books and will total thirteen by its completion. Originally, it would have been seven chapter books and six picture books, but was recently changed to seven picture books, which will detail each character's origins, and five chapter books.
A luminous new book series from William Joyce that redefines the icons of childhood: Santa Claus, Easter Bunny, Tooth Fairy, Sandman, Man in the Moon and many more. Published by Simon & Schuster, these books explore the mythology of childhood legends through vividly illustrated picture books and chapter books for young adults. In November of 2012, the series became an animated feature film from DreamWorks Animation: Rise of the Guardians.
- The Man in the Moon
- The Sandman: The Story of Sanderson Mansnoozie
- Jack Frost
- Nicholas St. North - TBA
- E. Aster Bunnymund - TBA
- Toothiana - TBA
- Katherine - TBA
- Nicholas St. North and the Battle of the Nightmare King
- E. Aster Bunnymund and the Warrior Eggs at the Earth's Core!
- Toothiana: Queen of the Tooth Fairy Armies
- The Sandman and the War of Dreams
- Guardians Chapter Book 5
The Frost Chronicles is a series of books that explore Jack's adventure and take place after The Guardians of Childhood series and before Rise of the Guardians
Movie Tie-In Books
Continue the adventure with these official movie tie-in books 
- Rise of the Guardians: Movie Novelization - Don't miss this novelization of Rise of the Guardians that comes with an 8-page, full-color glossy insert with images from the movie!
- Rise of the Guardians Movie Novelization (Audiobook) - Join forces with the Guardians to defeat Pitch in this retelling of the animated feature Rise of the Guardians. Includes eight pages of full-color images from the movie!
- The Story of Jack Frost - The Guardians need help. Jack Frost isn't a Guardian but he has amazing powers. Could he be the hero the Guardians have been looking for?
- Made in the North Pole - Where do the Guardians meet when there is important business to discuss? The North Pole, of course!
- Rise of the Guardians Deluxe Pop-Up - Captures all of the excitement of this screen saga with 14 dramatic lush pop-ups and spectacular flaps.
- Jamie to the Rescue! - See Jamie and his new friends the Guardians in this Ready-to-Read based on the Rise of the Guardians movie!
- Guide to the Guardians - Get to know the Guardians from the Rise of the Guardians movie in this incredible guide with glossy pages, stickers, and perf-out trading cards!
- 'Rise of the Guardians Mix & Match - Create hundreds of fun filled story combinations by flipping the panels and mixing and matching the stories on each page.
- Rise of the Guardians Worlds of Wonder: Deluxe Playset - Take a dimensional peek inside the world of the Guardians with this pop up playset that opens up into the worlds of North, Bunnymund, Tooth, and Jack Frost. Press out sheets of characters are included for dimensional play along with a 24-page character guide.
- Hidden Truth and Other Stories
- “The books take place a long time before the movie does,” Joyce explains. “The picture books tell the story of each Guardian. The novels are a series of interlocking stories about when the Guardians start working together, and the movie is set in the present day, when they all come together to do battle against the Nightmare King,” he says.
- While the picture books will detail the origin of each of the Guardians, William is thinking about making a picture book about Pitch Black. 
- ↑ A113Animation: Interview: William Joyce, Moonbot Studios Co-Founder
- ↑ Publisher's Weekly: Atheneum to Publish William Joyce 'Guardians' Series
- ↑ Reel Mama: An Interview with William Joyce: A True Guardian of Childhood
- ↑ http://moonbotstudios.com/2013/01/guardians-of-childhood-books.html
- ↑ https://www.goodreads.com/author_blog_posts/6401125-william-joyce-peter-de-s-ve-carlos-nine-and-bill-plympton-exhibit-work
- ↑ https://instagram.com/p/7JdMEBCzzZ/
- ↑ http://www.theguardiansofchildhoodbooks.com/movie-books.php
- ↑ http://www.jooyounpaek.com/?p=93
- ↑ https://www.reddit.com/r/IAmA/comments/3dv6v2/hi_were_william_joyce_and_brandon_oldenburg/ct8xwe0