Books like Iron Shirt Chi Kung I
Mantak Chia
Iron Shirt Chi Kung I is 320 pages, about 5 hours 52 minutes at 250 words a minute.
7 books to read next
How long each takes
None of These Diseases 2.9 h 
Nature, Man,& Woman 3.8 h 
The Weigh Down Diet 5.8 h 
Science and Health 12.8 h 
The Tao of Health, Sex and Longevity 7.5 h 
Everything Happens for a Reason 3.8 h The Tao of Balanced Diet 3.7 h Bar height shows length. Estimated at 250 words a minute.