Books like The Magic of Sex
Miriam Stoppard
The Magic of Sex is 256 pages, about 4 hours 42 minutes at 250 words a minute.
8 books to read next
How long each takes
The Art of Seduction 8.6 h 
The Joy of Sex 4.6 h 
Sex for Dummies 7.9 h 
The Tao of Love and Sex 2.5 h 
Ultimate Sex Guide 4.0 h 
Sex 5.6 h 
Extended Massive Orgasm 4.7 h 
The Complete Idiot's Guide to Amazing Sex 6.5 h Bar height shows length. Estimated at 250 words a minute.