The Ethical Slut, the kindest, most tolerant and most relaxing book is polyamory on the subject that I have met so far (also is recommended here wendy o-matic). it makes in its simple and empathetic language clearly what it is about the authors: to love, to freedom, to trusted, with themselves and with partners. a wonderful book which invites to trust and engage in whatever comes in interpersonal realms of the way.