The Free Library
A curated collection of free online books that build knowledge through coherent, content-rich learning and spark the joy of reading in children.
All books are suitable for strong independent readers age 8+, or as read alouds for younger readers.
📚 40+ free titles
🎓 Aligned with the Core Knowledge curriculum
How to use the Free Library
Explore Books
Browse our collection by topic, grade, or category.
1
Pick a Title
Choose the perfect read-aloud or independent reading book.
2
Read Online, Download PDF, or Listen
Enjoy the book your way—on screen, as a PDF, or as an audiobook.
3
This Month's Top Read
Indigenous Peoples' Day is October 12th
We invite you and your young readers to explore the full-length Voices in History biography of Chief Standing Bear by Patricia Morris Buckley.
OPEN TO EVERYONE
Where are these
books used?
In classrooms
Teachers download books for read-alouds, topic introduction, and reinforcement of core curriculum concepts.
At home
Parents use the collection to build consistent reading routines and connect books to broader learning themes.
In libraries and community programs
Librarians use the books in story hours, summer reading programs, outreach initiatives, and family literacy support.
"Helping young children develop the ability to listen to and understand written texts read aloud must be an integral part of any literacy initiative."
— Dr. E.D. Hirsch, Founder of Core Knowledge & The Free Library
✦ Curriculum Alignment
Cross Curriculum Connections
The following three launch Series align with the Core Knowledge Curriculum and power coherent, content-rich learning across every subject.
Voices In History
Compelling biographies about people who have shaped our world—explorers, leaders, witnesses, and rebels.
Adventures in History
Extraordinary events in history revealed through the eyes of young protagonists.
Collection of Tales
Folktales, myths, and legends from around the world—the stories every reader should know.
Frequently Asked Questions
Quick answers about the Free Library, books, and how to get started.
What is the Core Knowledge Free Library?
The Free Library is a curated collection of free online books, by award-winning children’s book authors, created to help young readers build knowledge and discover the joy of reading. Every title is aligned to the Core Knowledge approach and is available to read online at no cost.
Who is the Free Library for?
The Free Library contains engaging books that support learning. Titles can be read aloud or read by strong independent readers age 8 and up, as well as used by educators, librarians, families, and anyone else who wants to share beautifully illustrated, content-rich books with children.
Are all the books really free?
ALL books are available for free download, not some.
Can I use these books in my classroom?
Absolutely. The books are organized by topic, series, and curriculum connection by grade so teachers can easily find titles that reinforce content and concepts found in the Core Knowledge Sequence, CKLA, CKHG, and CKSci.
Are audiobooks available?
Some titles are available as audiobooks, and more are coming soon! Subscribe to our newsletter to be the first to know when audio editions are released.
How can I get physical copies of the books?
Physical copies are available for a low price from the Core Knowledge Bookstore!
How do I find the right book for my child or class?
You can browse the full collection here, filter by topic, series, or curriculum connection by grade, or ask the CK Librarian for a personalized recommendation.
Have another question? View all FAQs or contact us.