Books like The Minds of Billy Milligan
Daniel Keyes
The Minds of Billy Milligan is 448 pages, about 8 hours 13 minutes at 250 words a minute.
12 books to read next
How long each takes
Sybil 8.2 h 
Sybil Exposed 5.5 h 
Fractured Mind, a 5.2 h 
The Dissociation of a Personality 10.6 h 
When Rabbit Howls 7.3 h 
My Life as a Dissociated Personality 1.1 h 
Lucky 5.0 h 
MPD-Psycho 3.3 h 
The Mosaic Mind 6.8 h 
The Neurotic Personality of Our Time 5.5 h 
What My Bones Know 6.5 h 
I'm Eve 8.9 h Bar height shows length. Estimated at 250 words a minute.