David Owen explores Hume's account of reason and its role in human understanding, seen in the context of other notable accounts by philosophers of the early modern period. Owen offers new interpretations of many of Hume's most famous arguments, about demonstration and the relation of ideas, induction, belief, and scepticism. Hume's Reason will be illuminating not just to historians of modern philosophy but to all philosophers who are concerned with the workings of human cognition.