The Friends of the El Sobrante Library is an organization dedicated to improving library services in El Sobrante. Through membership donations and Book Sale earnings, the Friends provide the library with books, tapes, magazines, and compact discs. We also provide children's and cultural programs for the community.

When you join as a Member, you will receive newsletters giving advance notice of library events. Another benefit of your membership is priority admission to the book sales before they open to the general public.