Human nature is enigmatic. Are we cruel, selfish creatures or good merciful Samaritans? This book takes you on a journey into the complexities of human mind and kind, from altruism, sharing, and large-scale cooperation, to cheating, distrust, and warfare. What are the building blocks of morality and sociality? Featuring contributions from leading researchers, such as Christophe Boesch, Leda Cosmides and John Tooby, Azar Gat, Dennis Krebs, Ara Norenzayan, and Frans B. M. de Waal, this fascinating interdisciplinary reader draws on evolutionary and comparative perspectives, and is essential reading for any students interested in the unique characteristics that define humanity and society.