You can check this book out on Amazon also. This is of course an old book before all the research was available but I think it is a good book. I read it in 2002 after residency. I was trying to understand cutting (and I an associated symptom that I knew nothing about, dissociation. I think it is great. Right up there with A General Theory of Love.... In the Early 2000's when there wasn't much available to understand why we are the way we are and do what we do.
There may be better books but. This book (before Van der Kolk and Judith Herman, was my beginning of understanding cutting).