This study contends that existentialism is the perennial philosophy thus going against the assumption that it is a school of more recent provenance. Anthologies or introductory texts used begin with Kierkegaard the socalled father of existentialism and go on to emphasize Nietzsche Sartre and Heidegger. This book reflects a more catholic mapping including three thinkers from the classical period Socrates Augustine and the Stoics who are argued to be just as existential as more modern thinkers who are also treated and indeed influence the latter in important ways. Also included are three Americans Thoreau James and Hannah Arendt who are rarely considered existentialists. Furthermore the book has a pedagogical emphasis reflecting students pointsofview what they learn how they react questions they have and how in general existentialism meets their education needs and expectations. It is therefore necessarily interdisciplinary in character pointing out implications of existentialism for education concerns like happiness war and peace democracy sexuality and terrorism.