Sybil: The Classic True Story of a Woman Possessed by Sixteen Personalities - Flora Rheta Schreiber i've read this book a long time ago (and also made a terrible mistake: i lent it to a friend.. never got it back). It was an incredible book; there are parts that you just can believe it was based on a true story. But the truth is that when I got to the chapter of the physical abuse Sybil suffered as a child, i had to put the book down. It really is pretty shocking; I couldnt continue reading for several weeks. But overall, it was a really good book.