| Category | Links |
|---|---|
| All Branches |
University of Minnesota Open Textbook Library Project Gutenberg Open Library |
| Free eBooks | Free eBooks |
| Collection on eTopics. |
Bookboon |
| Open Access Books, including many in the fields of Science, Technology, and Engineering | InTechOpen |
| Large number of Books, with many available for Free. |
Google Books |
| Free Online Computer Science and Programming Books, Text books, and lecture notes |
Freetechbooks |
| Open Access Books, including many on all Subjects |
DOAB |
| O'Reilly Media books available for free |
O'Reilly Media books |
| Out-of-print books on Automobile Engineering |
HathiTrust Digital Library |
| AICTE Under Graduate Books |
AICTE e-KUMBH |
| Chemistry | University of Minnesota Open Textbook Library - Chemistry |
| Physics |
University of Minnesota Open Textbook Library - Physics eBooks PDF - Physics |
| Mathematics |
University of Minnesota Open Textbook Library - Mathematics |