The Internet Archive
If you were wondering where Open Library gets its books from, the answer is The Internet Archive.
As you can probably guess by the name, The Internet Archive has a huge list of titles you can read and download for free. On top of the many millions of books available for free, there are over 2 million titles you can borrow for free, too, just like the Open Library.
Another great thing about The Internet Archive is that it doesn’t only have ebooks. You can also listen to audiobooks, watch movies and TV shows, and even download music.
Even if you aren’t an avid reader, The Internet Archive has something you’ll probably love.