This volume brings together for the first time some of the most helpful and insightful essays on the four most influential and discussed philosophers in the history of existentialism: Kierkegaard, Nietzsche, Heidegger, and Sartre. The contributors write on such topics as Kierkegaard's knight of faith and his diagnosis of the 'present age;' Nietzsche's view of morality and self-creation; Heidegger's accounts of worldhood and authenticity; and Sartre's...