Tanenbaum's first book (Slut!) examined how social competition causes some female teenagers to attack others for real or imagined sexual behavior. In this follow-up, she branches out, taking on adult women and their struggles to look prettier, land better boyfriends or husbands, be more popular with co-workers and be considered better mothers than other women, sisterhood be damned. Although Tanenbaum provides the latest in academic research, she also includes an entertaining mix of examples from pop culture, newspaper and magazine articles and original fieldwork. She makes the subject personal, sharing her own frustrations with breast feeding, office gossip and living with a body that doesn't match contemporary beauty norms. Although many women feel no choice but to endure constant pressure and self-doubt, Tanenbaum counters that competition is a learned behavior, not human nature, and the consequences are rarely worth the meager rewards. "We can see that competition between women serves only the status quo," she laments. "And the status quo keeps us from gaining more power over our lives, our work, and our relationships." The closing chapter highlights the potential for women to collaboratively strive for success in the arenas of political activism and team athletics, but even there, Tanenbaum says, as in the business world, women must face the prospect of being judged "unfeminine" if they show too aggressive a desire to win. The book's accessible approach to the contradictions between feminist rhetoric and women's real experiences, especially in the still-controversial realm of working mothers, is sure to attract even more attention for this fast-rising social critic. (Oct.)