Books like Body Language
Susan Quilliam
Body Language is 144 pages, about 2 hours 38 minutes at 250 words a minute.
6 books to read next
How long each takes
How to Talk to Anyone 6.5 h 
Nonverbal Communication in Human Interaction 9.1 h 
Nonverbal Communication 4.3 h 
Nonverbal Communication 9.8 h 
How to Read People Like a Book 1.2 h 
Reading People 6.2 h Bar height shows length. Estimated at 250 words a minute.