ASCCC OERI logo decorativeCuesta OER publications

Dr. Mario Alberto Viveros Espinoza-Kulick co-authored two OER textbooks that are available on the LibreTexts platform. These are the first OER textbooks of their kind, designed to meet core competencies for general education Ethnic Studies and Chicanx and Latinx Studies courses. 

Search for OER

By discipline 

The Academic Senate of California Community Colleges maintains an active OER website with a curated list of OER available in your discipline.  It's at the ASCCC-OERI Resources by Discipline page. 

Didn't find what you need? Or want to recommend a resource for your discipline's list? Find contact information for the statewide Discipline Lead


You can look for materials being used in similar courses throughout the state by using your course's common identification code (C-ID). In the Cool4Ed site, maintained by the CSU system, you can narrow by discipline and C-ID to see which OER your teaching colleagues have chosen. 

By CSU Gen Ed and more

Looking for materials for a class that meets the California State University General Education requirements? You can find materials organized by Areas A-F in this CCC-OERI guide

Major national repositories

OER Commons

This library of open educational resources contains texts, lesson plans, images, videos and more. It enables you to search by education level, subject, and keyword. While its focus is on K-12 education, it contains undergraduate-level resources as well, many of which are reviewed. 


Initiated at UC Davis, this online textbook platform is the most widely used in California higher education. Explore their libraries by discipline to see which OER are available in your area of interest. This platform contains an easy-to-use remixer for those who wish to combine materials from multiple OER.

Mason Metafinder

This massive search tool combines the results from open textbook providers such as OpenStax with those from collections of items in the public domain, including the HathiTrust and Project Gutenberg. This is the best resource for a very deep dive into your search. 

Free images and videos