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We subscribe to over a million ebooks. Most of our ebooks are PDFs, and require no additional software. See each entry for formats and restrictions.

If the provider is listed as requiring Adobe Digital Editions, you'll need that software to move the downloaded ebook from your desktop/laptop to an ereader or mobile device. That will require installing the software and setting up an Adobe ID.

Provider Format Download? DRM?
ACS Symposium Series PDF, by chapter Yes No
Ebook Central from ProQuest PDF and EPUB Yes Yes, requires Adobe Digital Editions
Ebooks on EBSCOhost PDF by page Some Yes, requires Adobe Digital Editions
Gale primary source and literary databases PDF and images Yes No
HathiTrust Digital Library PDF Yes, for out of copyright books No
IEEE Xplore Digital Library PDF Yes No
Knovel Online Interactive Library PDF, by chapter Yes No
National Academies Press PDF Yes, requires free registration No
O'Reilly Safari Books Online HTML and page image Very few Only when using the mobile app
PsycBOOKS from EBSCOhost PDF, by chapter Yes No
SAGE Research Methods PDF Yes No
ScienceDirect PDF, by chapter Yes No
Springer ebooks, including Lecture Notes PDF Yes No
Synthesis Lecture Series from Morgan and Claypool PDF Yes No
Wiley ebooks PDF, by chapter Yes No