In addition to the resources that the library pays for, there are many high-quality free resources available online that you can use in your classes (there are also many poor quality resources, but that is another discussion about evaluation). They are two main categories you will encounter: Open Educational Resources (OER) and Open Access (OA). Napa Valley College encourages faculty to consider adopting open resources for their classes in order to mitigate some of the high costs of textbooks.
Open Educational Resources (OER) are "high-quality teaching, learning, and research resources that reside in the public domain or have been released under an intellectual property license, such as a Creative Commons license, that permits their free use and repurposing by others, and may include other resources that are legally available and free of cost to students" (from California Community Colleges).
Open Access (OA) "makes research accessible immediately upon publication with no restrictions. Anyone with internet access can find, read, mine, cite and share OA articles at no cost to them" (from PLOS).
Zero Textbook Cost (ZTC) - in 2019, Governor Gavin Newsom signed AB132 into law. Among many other initiatives designed to increase the success of community college students, this bill directly addressed the high costs of textbooks, requiring "a community college district, as a condition of receiving funding, to strive to implement zero-textbook-cost degrees" and included $115 million in funding. In an EdSource article from July 18, 2022, the application to apply for the grant was supposed to be available in August 2022, but as of September 30, 2022, it is not.
Eisen, Jonathan & Nick Shockey. "Open Access Explained!" YouTube, uploaded by Piled Higher and Deeper (PHD Comics), 25 October 2012, https://www.youtube.com/watch?v=L5rVH1KGBCY&t=1s.