In the beginning stages of my healing, I did a TON of reading. Actually, I listened to them all on Audible, driving in my car (who has time to read when you have kids?). Anyways, these books were key in helping me understand what NPD is, and how to deal (or not deal) with others in your life that have it. It was eye-opening to realize how this personality type had been penetrating my life for years and I had never been able to put my finger on it. I hope they help you as much as they helped me. Even reading ONE of these books will help you significantly, they are that good.