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What are some of the best websites for finding free e-books?
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1. Project Gutenberg: https://www.  projectgutenberg.org/
2. Free Ebook Library: http://freeebooklibrary.com/.
3. Feedbooks: https://feedbooks.net/.
4. BookBub: https://www.bookbub.com/.
5. Open Library: https://openlibrary.org/.