An overlooked element in the growth of civilization, fishing has provided enough food to allow cities, nations, and empires to prosper, argues archaeologist Brian Fagan in this "multilayered, nuanced tour" (Kirkus Reviews). Where agriculture encouraged stability, fishing demanded movement, and the search for new and better fishing grounds facilitated exploration and discovery. Surveying cultures worldwide, Fagan makes the case that this endlessly renewable resource has fueled traders, travelers, and conquering armies.