Old books are on Gutenberg, archive.org etc. Physical ones, I scan. Cutting the spine is easiest. But today you can also just take pics with your phone. Many

Old books are on Gutenberg, archive.org etc. Physical ones, I scan. Cutting the spine is easiest. But today you can also just take pics with your phone. Many retailers also sell EPUB. Which is just HTML. Obviously, that’s all for private consumption only. (Unless you’re OpenAI I guess. :-P)