 Anthony Rudd's book "Kierkegaard and the Limits of the Ethical" and Alasdair MacIntyre's discussion of Kierkegaard in "After Virtue" and "A Short History of Ethics" did much to facilitate Kierkegaard's legacy in ethical thought in analytic philosophy.Kierkegaard's influence on continental philosophy increased dramatically after the First and Second World Wars, especially among the German existenz thinkers and French existentialists.Jean-Paul Sartre, Emmanuel Levinas, and Karl Barth all owe a heavy debt to Kierkegaard.