This is a really helpful book (and I also really enjoyed the audiobook as well). What Elman does brilliantly is to work through examples and respond to lots of the "yes, but..." doubts that ping into your mind when listening about the possibilities of setting boundaries. Speaking personally, it made me realise where I hadn't let an unhealthy friendship go and has given me the strategy to go about dealing with it. I want my partner to read it. I want my mother to read it.