Open Access Resources

International initiative dedicated to Open Access monograph publishing, based at the National Library in The Hague.

Majority of this collection is in the public domain (no longer subject to copyright).

Over 460,000 late 15th to 19th century texts.

provides a growing catalog of free, peer-reviewed, and openly-licensed textbooks. The Open Textbook Library is supported by the Center for Open Education and the Open Textbook Network (OTN). PASCAL, the South Carolina academic library consortium, is an OTN partner.

Open source textbooks that are written by professional content developers who are experts in their fields and undergo a rigorous peer review process. All textbooks meet standard scope and sequence requirements.