Books like Human Groups and Social Categories
Henri Tajfel
Human Groups and Social Categories is 369 pages, about 6 hours 46 minutes at 250 words a minute.
6 books to read next
How long each takes
Behavior in Public Places 4.6 h 
The Presentation of Self in Everyday Life 4.7 h 
The True Believer:Thoughts on the Nature of Mass Movements 3.2 h 
Encounters 2.8 h 
Crowds and Power 9.6 h 
Us and Them 6.8 h Bar height shows length. Estimated at 250 words a minute.