Books like The Occult Book
John Michael Greer
The Occult Book is 218 pages, about 4 hours at 250 words a minute.
7 books to read next
How long each takes
The Occult, Witchcraft & Magic 7.3 h 
The Dark Side of the Enlightenment 7.8 h 
The Salem Witch Hunt 3.9 h 
The Witch-hunt in Early Modern Europe 5.5 h 
The Witch 6.9 h 
Persuasions of the Witch's Craft 7.1 h 
Witchcraft, Magic & Alchemy 7.2 h Bar height shows length. Estimated at 250 words a minute.