Top sex and marriage advice through the ages
Some ancient relationship books were startlingly insightful — and specific
Why some lovers find smoking sexy
Should she light up for him? What happens after celibacy? Answers here.
Erotica gives book publishers surprising boost
The once-fringe genre is booming, with online book clubs, public readings
More Sexploration columns
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About the author
Brian Alexander writes the Sexploration column for msnbc.com. His new book, based on a special series he wrote for the site, is "America Unzipped: In Search of Sex and Satisfaction."
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