“Unto Others, written by two eminent scholars, a philosopher (Elliott Sober) and a biologist (David Wilson) who have thought long and hard about unselfish cooperative behavior and group selection, is bound to have a long-lasting and strong influence on the field of evolutionary biology…In this book, philosophical and biological discourse are tightly woven together into an easy-to-read package. The major appeal of this book to those interested in he comparative and evolutionary study of behavior centers on the broad range of material that Sober and Wilson consider in arguing for group selection…All in all, Unto Others is a good read…I’m sure all readers will come away from this stimulating book having learned a lot and having had their own views challenged by this thoughtful and very timely essay.”