OpenStax offers free college textbooks
Alastair Reynolds books in order for his popular Revelation Space sci-fi series and the rest of his novels, novellas and short stories.
Xiaomi Moaan has just released the InkPalm Mini 5 Pro Edition e-reader. This is a pocket-friendly device that has the form factor of a smartphone, but is a
Are you looking for books to learn Russian? In this article, we’ll go over our top picks of Russian textbooks and show you how they can be effective learning tools.
AbeBooks is owned by Amazon.
Also:
Powell's
https://www.betterworldbooks.com
Half Price Books
indiebound / bookshop.org
Thriftbooks/GoodwillBooks
Alibris has ebooks and movies
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This might be enough to hand-edit an earlier version to be usable.