For forty years, in a variety of books and articles, Gerhard Lenski has become the most influential proponent of ecological and evolutionary explanations of human societies, their development and transformations, from the Stone Age to the present. In his newest book, Lenski offers a succinct but comprehensive statement of the full body of his theory followed by demonstration of how it can be used to generate new and valuable insights when applied to a set of highly diverse issues. These include debates concerning the origin of ancient Israel and its distinctive culture, the rise of the West...