"Killen and Hart, moving beyond their Kohlbergian roots, present chapters which mainly bring a social perspective to moral reasoning development. Several pay detailed attention to interactions between children, and between children and adults. This rich data demonstrates the vital importance of naturalistic studies, which are examples of how the cognitive developmental framework is being transmuted into the developing field of cultural psychology. They also illustrate research rigour, and conceptual sophistication about the problems of defining morality." The Psychologist