Polyamory Reading List
Note: affiliate links
Don't let the controversy surrounding Franklin Veaux stop U from reading this book that honestly his three women coauthors, Eve Rickert, Janet Hardy, and Tatiana Gill, probably wrote most of. An in-depth guide, more geared to a poly relationship style specifically.
Helpful if U feel new to attachment theory and to polyamory and U'd like an introduction to both that draws the connections between the topics.
Presents many different styles of open relationships with the invitation to craft your own. Not as "poly centric" as say More Than Two, a great starting point for people exploring openness.