Psychologist and writer Carol Tavris. Her latest book, "The Mismeasure of Woman," looks at the widespread but unacknowledged custom of defining norms according to men's bodies and behavior. Tavris shows that the real differences in gender are in power, resources, and life experiences. She also wrote a review of two books dealing with incest, called "Beware the Incest-Survivor Machine," for The New York Times Book Review. In it, she calls for a more reasoned, cautious approach to a very complicated issue. The review received a fire-storm of letters from readers.