From Michael's list on sex and sexuality.
Most men think sex is largely about intercourse, and that intercourse is how women get to orgasm. Actually, the organ that triggers orgasm in women is the clitoris, which sits outside the vagina an inch or so above it nestled beneath the top junction of the vaginal lips. Only a small fraction of women can work up to orgasm during intercourse. Most need gentle, direct, extended clitoral caresses, by hand, mouth, or sex toy. This book explains the primacy of the clitoris in women’s pleasure. It should be required reading for all men.