The purpose of this course is to assist philosophy students to understand the specific content they are reviewing, as well as to reinforce exam preparation and essay writing. Alternatively, a full course of Introduction to Philosophy can be requested, of a minimum of five classes. In this course, at least four central authors of the tradition will be reviewed: Plato, Descartes, Kant and Heidegger. As arranged by the student, it is possible to focus on other thinkers.