While other authors have stressed the 20th century's emphasis on parental anxiety by focusing on the advice industry (e.g., Ann Hulbert's recent Raising America, Forecasts, Mar. 10), Stearns, a George Mason University history professor, takes a broader approach. If the 20th century invented the scientific approach to child care, it was partly because parents were seeking expert opinions. Modern life had created real changes in the lives of children: urbanization and smaller, nuclear families. While earlier generations of parents had viewed children as resilient, in the 20th century they were considered vulnerable, which shaped parents' approaches to children's discipline, schooling, chores and uses of leisure time. The impact of parental anxiety on children's daily lives may not have been drastic, but it did steer children in certain parent-sponsored directions, says Stearns. Children became more school-oriented, their free time more regulated. As parents worried that their kids were bored, kids began describing themselves that way. Parental hovering increased adolescent need to differentiate from parents; constant emotional temperature-taking may have led to an increase in childhood depression. Stearns urges "more parental backbone" to reject guilt tripping by the experts and more "decency" from the advice givers. Less nostalgia and more study of how things really were and are (i.e., by reading excellent texts like this one) may give parents and educators a clearer picture of how well they're doing. Stearns has put a lot of thought into this dense but elegantly argued and thoroughly researched volume, and it should become a classic in the study of American childhood. (May)