An excellent book for the layperson to understand BPD and how to live with it. I was a bit disappointed that it did not mention that there can be some of the symptoms in a borderline personality traits individual which is less severe and not needing medication. This has been written about in several magazines over the years, and explains why some friends/relatives/partners are difficult, and yet not mentally ill. A wonderful book for all to read when dealing with someone who seems difficult to be around.