Edward Klein's new book, ''The Truth About Hillary,'' is not a biography, to be evaluated in terms of how well or poorly it relates to real events or a real person; it is something much more revealing -- a kind of cultural dreamwork, like that in 18th-century penny ballads that linked real political figures to folklore, giving them supernatural traits. In the stories that Klein tells, we can clearly see the collective unconscious of our culture at work, throwing up vivid, even lurid fantasies that emerge out of the shifting balance of power between women and men.