It's one of the few books that I keep and often refer to, share, and highly recommend. (I often feel like a broken record, but it is a very helpful book... :smash: )
Some dear board memeber here recommended it years ago. My mil was my reason for seeking a copy, and it was worth every dollar. Lots of libraries have a copy and it's my first recommendation to anyone dealing with a difficult person...especially a difficult family member.