Martin Heidegger, considered by some to be the greatest charlatan ever to claim the title of 'philosopher', and acknowledged by others as a leader in continental philosophy, is probably the most divisive thinker of the 20th century. In this new edition, Michael Inwood focuses on Heidegger's most important work, Being and Time, exploring its major themes of existence in the world, inauthenticity, guilt, destiny, truth, and the nature of time. In a new chapter, Inwood also tackles the contentious topic of Heidegger's Nazism and antisemitism, to reveal its deep connection with his personality and overall view of philosophy.