For centuries men have used the lessons of Machiavelli's The Prince to gain and hold power. Today's women, struggling to succeed in a man's world, must learn a crucial lesson of their own: men and women are not equal--and that is a woman's greatest strength. From the wars of intimacy to battles of public life, whether confronting bosses, competitors, or lovers, the greatest power belongs to the woman who dares to use the subtle weapons that are hers alone.

This provocative work urges women to claim what they want and deserve,...