Informative and enlightening, but limited as a practical guide to parenting. Sanger (a researcher in child development) is enthusiastic and encouraging: his intensive studies of parent-child interactions have shown strongly that there are specific techniques and behaviors than enhance children's social and psychological growth. However, many of these seem to be instinctive in any case; the details as presented here of those that might be learned are daunting when considered as a self-help or self-awareness program. Indeed, malfunctioning families (where such nurturant behaviors have gone awry or are missing) seem in Sanger's experience to require intensive therapeutic intervention. So the reader-parent may learn here that there are a number of ""more subtle primed responses which you and other mothers and fathers use every day without even being aware of it. . .such behaviors as phatics, paragraphs, back channels, chorusing, turn-taking, as-if responses, and multimodal highlighting."" The prospect of trying to make some practical application of this by oneself is dim. Nevertheless, Sanger's research and insights into parenting behavior offer many new possibilities, and the intellectually curious will find much to ponder. Readers can turn to one of the numerous existing parenting guides for day-to-day assistance.