- Popular eBooks for adults and kids (Axis 360)
- Axis 360 features a wide selection of adult bestsellers and children's and young adult titles. The Axis 360 all-in-one mobile app for Android, iOS, and Kindle Fire devices allows you to locate and access eBooks directly from the app. A Windows Desktop Reader app is also available. Axis 360 is not compatible with e-Ink devices, such as Kindle and Nook.
- Popular eBooks, eAudiobooks (OverDrive)
- Popular fiction and nonfiction titles in English, Chinese, Russian and Spanish. Download eBooks onto your portable device, including Kindle, iPhone/iPad and Android.
- Computing and IT Books (Safari Techbooks Online)
- Full-text online access to over 4000 computing, IT, and management titles that you can read online.
- Historical Works (SFPL's Digitized Books)
- View or download historical San Francisco books and government documents, including the popular City Directories and Municipal Reports.
- The Classics (Open Library)
- Over 2.7 million free classic eBooks from the Internet Archive including great works in the public domain from over 600 libraries around the world.
- Nonfiction with an Academic Focus (Ebsco eBook Collection)
- Thousands of electronic books covering classic literature, business, technology and other nonfiction subjects.
- eBook/eReader Classes
- Take an eReader class and learn to download free eBooks from the Library.
- eBooks from small, medium-sized and independent publishers
- Enki is an ebook platform created by Contra Costa County Library and funded by Califa and Bay Area libraries by working directly with a variety of publishers. The collection contains fiction and nonfiction titles for children and adults, and includes self-published titles from Smashwords. Checkout and read online or download to devices compatible with the EPUB format. Not compatible with Kindle eReaders.
- Znanium eLibrary System (in Russian) | (Academus Publishing)
- A continuously updated collection, the Znanium eLibrary consists of Russian reference eBooks (nonfiction and academic titles, textbooks, literary classics), as well as journal articles published by INFRA-M Academic Publishing Center and other leading Russian publishers of scholarly and scientific books and journals.