Today, if I mention Christians and controversial books the first image that probably comes to mind is book banning or even burning. But lest we forget, at one time it was the Christians who actually saved books deemed controversial, or even demonic.
Trithemius, a 15th-century German abbot, scholar, and polymath, is famous for his contributions to occult philosophy and cryptography. Additionally, he was an influential historian and librarian, renowned for expanding and organizing the library at the monastery of Sponheim from a mere 50 books to over 2,000, many of them occult in nature.
Take this as your ever present reminder that books are not evil. Ideas deserve preservation.