Flexibility and tolerance are learned skills, as any parent knows if they've seen an irascible 2-year-old grow into a pleasant, thoughtful, and considerate older child. Unfortunately, for reasons that are poorly understood, a few children don't "get" this part of socialization. Years after toddler tantrums should have become an unpleasant memory, a few unlucky parents find themselves battling with sudden, inexplicable, disturbingly violent rages--along with crushing guilt about what they "did wrong." Medical experts haven't helped much: the flurry of acronyms and labels (Tourette's, ADHD, ADD, etc.) seems to proffer new discoveries about the causes of such explosions, when in fact the only new development is alternative vocabulary to describe the effects. Ross Greene, a pediatric psychologist who also teaches at Harvard Medical School, makes a bold and humane attempt in this book to cut through the blather and speak directly to the (usually desperate) parents of explosive children. His text is long and serious, and has the advantage of covering an enormous amount of ground with nuance, detail, and sympathy, but also perhaps the disadvantage that only those parents who are not chronically tired and time-deprived are likely to get through the entire book. Quoted dialogue from actual sessions with parents and children is interspersed with analysis that is always oriented toward understanding the origins of "meltdowns" and developing workable strategies for avoidance. Although