Rachel Bromwich 
Critical Perspectives on 21st Century Frienship, Polyamory, Polgamy and Platonic Affinity [PDF ebook] 

This anthology takes an international and cross-cultural approach to discussions about friendship by curating a set of diverse contributions situated in a transnational context. These interdisciplinary contributions take friendship seriously as a subject of feminist and legal study and hone in specifically on polyamory, polygamy, and Platonic affinities, considering the sexual and non-sexual ties of affect and affinity that link a diverse range of contemporary friendships that exist cross-culturally. This highly original book teases out commonalities between experiences of affinity that are enmeshed with the differences between social, national, legal, and cultural frameworks that surround these relationships of affinity and affect, and troubles forms of government and legal regulation that prohibit or fail to recognize the consensual interdependence connecting diverse forms of human friendship.