How did the universe begin? Is the universe infinite, or does it have boundaries? How did the universe evolve? What is the nature of space and time? Why is there something rather than nothing? These are some of the big questions humanity has grappled with since the dawn of civilisation. The most recent scientific thinking regarding the mysteries of the universe is presented with clarity and brilliance in this unique book based on a conversation with Stephen Hawking himself. I am sure the readers will enjoy this fascinating journey through some of the surprises and mysteries of modern physics. - Edward Witten Founder of M Theory and recipient of Fields Medal