Image from OpenStax College website. https://openstaxcollege.org/books

OpenStax College is a nonprofit organization committed to improving student access to quality  learning materials.   It offers professional-quality textbooks that are free online and low-cost in print in a range of areas. The content is aimed at supporting introductory US College courses, but could be useful for introductory undergraduate modules studied in the UK.

The books are also customisable so can incorporated into modules by lecturers  – at chapter or book level.  Or students can use these as free additional materials to support their recommended reading.

OpenStax College textbooks are licensed using a Creative Commons Attribution license (CC-BY 3.0). This license lets others distribute, remix, tweak, and build upon our works, even commercially, as long as they credit the authors for the original creation.

For more information, take a look at the OpenStax College website.

The subject coverage is growing. At present the following titles are available:

• Algebra and Trigonometry
• Anatomy and Physiology
• Biology
• Chemistry
• College Algebra
• College Physics
• College Physics for AP® Courses
• Concepts of Biology
• Introduction to Sociology 2e
• Introductory Statistics
• Precalculus
• Principles of Economics
• Principles of Macroeconomics
• Principles of Macroeconomics for AP® Course
• Principles of Microeconomics
• Principles of Microeconomics for AP®
• Psychology
• U.S. History