Forgotten Books
forgottenbooks.com
A digital library of rare and obscure historical books — scanned from original texts and covering history, philosophy, science, occult literature, and forgotten classics — with millions of titles accessible free.
Why it is useful
Covers material that has genuinely disappeared from mainstream libraries and bookshops — 19th-century scientific treatises, obscure philosophy, Victorian fiction, historical documents, and esoteric literature that exists nowhere else digitally. The free reading option covers most titles. Useful for researchers, historians, and anyone who enjoys following bibliographic rabbit holes into genuinely forgotten corners of print culture.