(Oxford University Press) This book explores the nature of moral development, human behavior, and social interconnections; from superficial perception to deeper understanding and feeling through social perspective-taking. Gibbs has worked or been acquainted with the preeminent thinkers Lawrence Kohlberg, Martin Hoffman, and Jonathan Haidt, and in this book he compares, contrasts, and goes beyond their work. Gibbs is a professor of developmental psychology at Ohio State University.