This book provides both a review of the literature and a theoretical framework for understanding the development of visual attention from infancy through early childhood. Taking a functional approach to the topic, the authors discuss the development of the selective and state-related aspects of attention, as well as the emergence of higher-level controls. They also explore the individual differences in these facets of attention, and consider the possible origins of early deficits in attention, which has obvious implications for children with developmental disorders such as attention-deficit hyperactive disorder. These findings will be invaluable to developmental, cognitive, and clinical psychologists and psychiatrists.