Anyone in possession of pediatrician Eden's 1975 Growing Up Thin can sit tight: this is the same book, minimally revised, with a brief new chapter on the parents' role in preventing obesity. As before, Eden provides practical, knowledgeable advice to this end, from conception through the teen years. When their children are small, parents should prevent the creation of fat cells which can never thereafter be eliminated (their size can be decreased, but not their number). The subsequent stress is on family support: if one member is dieting, use the occasion to improve everyone's eating habits; since exercise is vital, make that a family routine too. With chapters on each age group--implemented with weekly diet plans and illustrated with anecdotes--the book is encouragingly easy to follow. But, most important, it's geared to permanent change.