The site has indexed more than 20 million titles, with the goal of having a listing for every book ever published. Â The listings include 1.7 million books in the public domain. Â You can download many of these in a variety of formats –Â PDF, ePub, MOBI, DAISY, DjVu and ASCII text. Â Others can be “borrowed” by providing an email address for checkout. Â Note that some titles are still copyright protected and have links to sites for purchase.
Open Library
