Open Access E-books
1
Springer Open books
https://www.springeropen.com/books
2
Intech
https://www.intechopen.com/books
3
National Digital Library
https://ndl.iitkgp.ac.in
4
Project Gutenberg
https://www.gutenberg.org
5
Bookboon
https://bookboon.com/
6
World ebook library
http://www.worldebooklibrary.org/
7
Free book Centre
http://www.freebookcentre.net/
8
E books directory
https://www.e-booksdirectory.com/
9
American Mathematical Society Books
https://bookstore.ams.org/
10
OAPEN
https://www.oapen.org/
11
Open Text Book Library
https://open.umn.edu/opentextbooks
12
Get Free Ebooks
https://www.getfreeebooks.com/
13
Ebook Lobby
http://www.ebooklobby.com/
14
Bookyards
https://www.bookyards.com/en/pdfbooksfree
15
Hathi Trust Library
https://www.hathitrust.org/
16
Digital Library of India
https://www.dli.ernet.in/
17
Alex Catalogue of Electronic Texts
http://infomotions.com/alex/
18
Open Library
https://openlibrary.org/
19
Free Engineering Books
https://www.engineeringbookspdf.com/
20
ebooks@adelaide
https://ebooks.adelaide.edu.au/
21
Read Print
http://www.readprint.com/