[en] Men, Women, and Relationships · Making Peace With the Opposite Sex Harper Paperbacks
[en] A Free Collection of Dating and Relationship Articles Darren G. Burton
[en] A Scientific Guide to Successful Relationships (A Good in Bed Guide) Good in Bed Guides
[en] Care and Nurture for the Submissive - A Must Read for Any Woman in a BDSM Relationship (Women's Guide to BDSM) Elizabeth Cramer via Amazon Kindle
[en] Sex at Dawn · the Prehistoric Origins of Modern Sexuality HarperCollins
[en] Male Sex Work and Society Harrington Park Press, LLC
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