This definitive volume is the result of collaboration by top scholars in the field of children's cognition. * New edition offers an up-to-date overview of all the major areas of importance in the field, and includes new data from cognitive neuroscience and new chapters on social cognitive development and language * Provides state-of-the-art summaries of current research by international specialists in different areas of cognitive development * Spans aspects of cognitive development from infancy to the onset of adolescence * Includes chapters on symbolic reasoning, pretend play, spatial development, abnormal cognitive development and current theoretical perspectives