A listing of academic, peer reviewed books in Open Access. It currently (2019) includes 15661 Academic peer-reviewed books and chapters from 307 publishers. The site may be browsed by subject (main link above) or searched using a basic search feature.
A selection of several thousand online books for children from around the world. Collection may be searched or browsed, and contents may be sorted by a variety of filters/features.
The National Academies Press (NAP) publishes the reports of the National Academies of Sciences, Engineering, and Medicine. The NAP publishes more than 200 books a year on a wide range of topics in science, engineering, and medicine, providing authoritative, independently researched information on important matters in science and health policy. The Press offers more than 8,500 titles in PDF format. Almost all of these PDFs can be downloaded for free by the chapter or the entire book. You may search by keyword, or browse ebooks by subject.
Collection of Salem Press eBook titles in the subject areas of history, science, health and careers.