[Otternonsenz]

Can agree this one is fantastic, and you don’t need to be polyamorous or in a poly relationship to get something out of it. I would recommend it for anyone who wants to be more secure in non-amorous relationships as well, as the stuff in here could easily be applied to those situations.

You could probably find other books on attachment theory, but the application of those ideas in a book that is based on the individual and how to navigate your own attachment issues in the midst of multiple relationships is great.