Book excerpt: First Published in 1981. This book presents a detailed account of a two-year study relating preschool children's home television-viewing patterns to their spontaneous behavior, play, aggression, and language use in nursery school settings. It also describes an attempt to modify children's viewing patterns and behavior through interventions with parents and special training procedures. This book will be of special interest to behavioral scientists and graduate students in the fields of child development and communication research.