Heidegger is one of the most controversial thinkers of the twentieth century. His writings are notoriously difficult; they both require and reward careful reading. "Being and Time" , his first major publication, remains to this day his most influential work. Heidegger's "Being and Time" introduces and assesses: Heidegger's life and the background to "Being and Time", the ideas and text of "Being and Time", Heidegger's continuing importance to philosophy and his contribution to the intellectual life of our century. In this second edition, Stephen Mulhall expands his treatment of skepticism, revises his discussion on death, and reassesses the contentious relationship between the two parts of "Being and Time" with a focus on the notion of authenticity. This guide will be vital to all students of Heidegger in philosophy and cultural theory.