The Celts were smarter than we think
Graham Robb is an ambling historian. His best-known book, "The Discovery of France," was based on his travels over 14,000 miles of road by bicycle. France, he argued, is not the culturally homogenous whole it's typically assumed to be, but an assemblage of distinct and often insular local cultures. As Robb sees it, history, and especially its concealed but detectable residue, can be better understood up close, by putting your feet on the ground where it happened.