What version of my book is on OpenStax.org?

Why can't I find previous versions of my textbook on OpenStax.org?

Textbooks on OpenStax.org will always display the most recent version of the book. We decided not to show previous versions of the content for two reasons.

Avoiding Confusion

We discovered that versioned links caused confusion for students and instructors. If students stumbled upon a versioned link, they weren't sure if their instructor intended them to use the current version or the previous version.

Ensuring Quality

OpenStax expends significant resources to maintain our textbooks, fix broken links, update errata, and more. We want to make sure every user can easily find and benefit from the latest updates. For more information about the OpenStax errata correction process, visit our Errata Correction Process help article.