Consistent with the direction the field of developmental psychology is heading towards (an expanded vision that gives greater attention to individual differences and cultural variation), Bjorklunds extensively revised new edition offers a unique theme: individual differences in cognition can be most profitably understood by a consideration of developmental function. Capturing the flavor and excitement of the field, Bjorklund offers several new chapters, including groundbreaking coverage of social cognition, biology, culture and cognition, and emerging theories. Rather than taking a selective approach, Bjorklund extensively summarizes theory and research, offering breadth of coverage and an empirical perspective