Books like Flim-flam!
James Randi, Dominique Le Brun
Flim-flam! is 342 pages, about 6 hours 16 minutes at 250 words a minute.
12 books to read next
How long each takes
An Encyclopædia of Occultism 8.1 h 
The Amityville Horror 4.5 h 
Supernature 6.4 h 
Three Books of Occult Philosophy 5.9 h 
Communion 5.5 h 
Metafísica 5.3 h 
Critique of Psychoanalysis 6.2 h 
Magia Blanca 1.7 h Mind-reach 4.2 h 
Beyond Telepathy 6.1 h 
Psychic Self-defence 3.8 h 
Far Journeys 5.3 h Bar height shows length. Estimated at 250 words a minute.