2000+ Occult Texts Now Online Thanks to Dan Brown
2025-08-16

Amsterdam's Ritman Library, a treasure trove of pre-1900 books on alchemy, astrology, magic, and other occult subjects, has digitized 2,178 of its rare texts thanks to a generous donation from Dan Brown, author of *The Da Vinci Code*. The "Hermetically Open" project makes these books, written in various European languages (primarily Latin, with specialized jargon), freely accessible online. The collection isn't limited to the occult; it also includes works bridging philosophy, theology, medicine, and science, reflecting the interdisciplinary nature of scholarship in the era.