"Healing the Shame that Binds You" by John Bradshaw.
I strongly recommend this book. It has helped me a great deal. Deep internalized shame is one of the most serious results of being abused and we carry this burden around with us while it devastates our lives. It can be caused by many forms of abuse, especially sexual. The first third of the book is kind of depressing because he tells you how bad it is, but the rest of the book talks about recovering and moving forward, regaining your authentic self in the process. Anyway, I got a lot out of it and maybe you will, too.