What We Are

Open Textbooks is a free, open educational resource providing K-12 curriculum materials aligned with college readiness standards.

Our Approach

We believe that quality education should be accessible to everyone. Our textbooks are:

• Free forever - No paywalls, no subscriptions, no hidden costs
• Standards-aligned - Content mapped to SAT and ACT domains
• Accessible - Designed for all learners and devices
• Open source - Released under Creative Commons licensing

What We Cover

Our curriculum spans Kindergarten through Grade 12, covering five core subject areas:

• Mathematics
• English Language Arts
• Science
• Social Studies
• SAT/ACT Skills