Books like The One Hour Orgasm
Bob Schwartz
The One Hour Orgasm is 177 pages, about 3 hours 15 minutes at 250 words a minute.
12 books to read next
How long each takes
She Comes First 4.4 h 
The Multi-orgasmic Man 4.4 h 
He Comes Next 3.9 h 
The Multi-orgasmic Couple 4.1 h 
For Yourself 4.0 h 
Becoming Cliterate 5.2 h 
Eso 4.8 h 
Extended Massive Orgasm 4.7 h 
Orgasms 5.0 h 
How to Have an Orgasm- as Often as You Want 5.3 h 
Satisfaction 2.6 h 
The Big O: Orgasms 5.0 h Bar height shows length. Estimated at 250 words a minute.