Childhood Antecedents of Multiple Personality Disorder includes topics such as the effect of child abuse on the psyche, the development of multiple personality disorder: predisposing, precipitating, and perpetuating factors, and the relationship among dissociation, hypnosis, and child abuse in the development of multiple personality disorder.
For a book from 1985, this book is incredibly respectful towards patients with DID. Although some of the information and theories are outdated, a lot of it is direct case studies that still hold up. I would not consider this a good starting point for learning about DID, but I would consider it excellent advanced reading material that covers quite a bit and is incredibly informative. It was difficult to read at times due to some of the descriptions of abuse, but overall very worth the read.
Kluft is a real authority on MPD (often known as Dissociative Identity Disorder) and have written many useful academic papers and books on the subject. He writes very well also.