Books like Dissociative Identity Disorder
Colin A. Ross
Dissociative Identity Disorder is 452 pages, about 8 hours 17 minutes at 250 words a minute.
7 books to read next
How long each takes
Sybil Exposed 5.5 h 
Fractured Mind, a 5.2 h 
Sybil 8.2 h 
The Minds of Billy Milligan 8.2 h 
The Dissociative Identity Disorder Sourcebook 5.7 h 
The Magic Daughter 4.5 h 
The Dissociation of a Personality 10.6 h Bar height shows length. Estimated at 250 words a minute.