I'm reading a new book: The Art and Etiquette of Polyamory: a Hands-on Guide to Open Sexual Relationships by Francoise Simpere. The English language version is a 2011 copyright and I think it's original date in France is 2007.
So far, so good. But I can definitely see the French cultural influence. I'll be back when I'm done to let you know what I think. I'd like to know what others think about it, too.