Books like MAGICK in THEORY and PRACTICE
Aleister Crowley
MAGICK in THEORY and PRACTICE is 436 pages, about 8 hours at 250 words a minute.
12 books to read next
How long each takes
The Catchers of Heaven 7.4 h 
Kitchen Table Tarot 5.2 h 
The Key of Solomon the King 2.7 h 
On Monsters 6.8 h 
Thinner 5.8 h 
Taltos 8.9 h 
Heaven and Earth 7.0 h 
Stitches in Time 7.3 h 
The Pursuit of God 1.7 h 
Reclaim Your Heart 3.6 h 
Thornyhold 5.2 h 
Practical Magic 5.3 h Bar height shows length. Estimated at 250 words a minute.