What is truth? How can I lead an ethical life? Do I have free will? Throughout history, the world's great thinkers have sought to answer the most profound questions about our universe and have created compelling new ways of thinking. In this beautifully illustrated hardback, Michael Moore introduces you to the fascinating world of philosophy and its greatest practitioners. Ranging from epistemology to existentialism and featuring ideas from philosophers as varied as Plato, Immanuel Kant, and Jean-Paul Sartre, this essential guide will bring you up to speed on the core themes and theories of this great subject.