“Polysecure: Attachment, Trauma and Consensual Nonmonogamy” by Jessica Fern
I found Polysecure to be one of those books that had some really intelligent and insightful things to say. You just need the stamina to be able to process everything it hands you.
"Opening Up" by Tristan Taormino
Finding books about non-monogamy is tricky. When you’re polyamorous, one of the things you notices about popular culture is how must it simply doesn’t get what polyamory is. A lot of resources out there are trashy, focusing on nothing but the sexual aspect. Others seem to have decided that they have worked out exactly what polyamory is, and make you feel that if you don’t want exactly what they say you want then you’re doing it wrong.