Clausewitz's On War, first published in 1832, remains the classic study of the nature and conditions of warfare. Best remembered for his pronouncement that war is a continuation of politics by other means and for his observations on total war, he gave a new philosophical foundation to the art of war. Complex and often misunderstood, Clausewitz has fascinated and influenced generations of politicians and strategic thinkers. Beatrice Heuser's comprehensive study is the first book on how to read Clausewitz and how others have read him - from the military commanders in the First World War through Lenin and Mao Zedung to strategists in the nuclear age. The result is an accessible and illuminating introduction to the most influential study of the art of war.