Essential listening for all those who want to understandthe universe in which we liveStephen Hawking is one of the most influential thinkers of our time, an intellectual icon, known not only for the adventurousness of his ideas but also for the clarity with which he expresses them. Seeking to uncover the holy grail of science: the elusive Theory of Everything that lies at the heart of the cosmos, Professor Hawking takes us the cutting edge of theoretical physics, where truth is often stranger than fiction, and explains in layman's terms the principles that control our universe.