Start with high-confidence the occult books, then narrow by subgenre or adjacent topics.
The Kingdom of the Occult
Walter Martin, Jill Martin Rische
Satanic Bible
Anton Szandor Lavey, Peter H. Gilmore
Mysteriorum Libri Quinque
Dr. John Dee, Joseph H. Peterson
The Book of the Damned
Charles Fort
The Lost Pillars of Enoch
Tobias Churton
Kybalion: a Study of the Hermetic Philosophy of Ancient Egypt and Greece
Three Initiates
