MARS AND VENUS IN THE BEDROOM

More pithy reductionism from Gray (What Your Mother Couldn't Tell You and Your Father Didn't Know, 1994, etc.). This time he moves from ``relationship skills'' to ``bedroom skills,'' which at least makes for better reading as he applies every clichÇ about the differences between men and women to sex. ``Just as a woman needs love to open up to sex, a man needs sex to open up to love.'' Scattered among such generalizations are some bedroom (and kitchen, and hallway) tips and points of basic anatomy that couples might find helpful if for no other reason than that they may be reassured that, at times, everyone is awkward, uncommunicative, or just not in the mood. (First printing of 500,000; $250,000 ad/promo)