Attachment Theory in Polyamory: Fern discusses how attachment theory, traditionally used to understand monogamous relationships, can be applied to polyamorous contexts. She argues that understanding one's attachment style can help navigate the complexities of multiple relationships.

Redefining Relationship Norms: The book challenges the conventional notion that monogamy is the only way to experience love and security. It presents polyamory as a viable and rewarding alternative for those who choose it.

Emotional Security in Nonmonogamy: 'Polysecure' emphasizes that emotional security is possible in nonmonogamous arrangements. Fern provides strategies for establishing trust and maintaining emotional safety in polyamorous relationships.