Books like The Heart of Tantric Sex
Diana Richardson
The Heart of Tantric Sex is 256 pages, about 4 hours 42 minutes at 250 words a minute.
11 books to read next
How long each takes
The Art of Sexual Ecstasy 8.3 h 
The Art of Sexual Magic 7.0 h 
Tantra 2.5 h 
Tantric Sex 3.5 h 
The Art of Everyday Ecstasy 5.9 h 
Urban Tantra 5.3 h 
Sambhoga Se Samādhī Kī Ora 3.7 h 
Sex and Psychic Energy 2.3 h 
Tantric Sex 3.4 h 
Jewel in the Lotus 4.6 h 
Tantra 2.6 h Bar height shows length. Estimated at 250 words a minute.