We need a history of truth - though until now no-one has tried to write one. We need it to test the claim that truth is just a name for opinions which suit the demands of society of the convenience of elites. We need to be able to tell whether truth is changeful or eternal, embedded in time or outside it, universal or varying from place to place.We need to know how we got to where we are in the history of truth - how our society has come to lose faith in teh reality of it and lost interest in the search of it. We need a history of truth to illuminate the unique predicament of our times and to help us escape from it. Felipe Fernandez-Armesto argues and shows how - at different times and societies, people have tried to tell the differences. And he exposes the concepts of truth which have underpinned those techniques.