One of the most influential physicists of all time, Stephen Hawking changed our understanding of the cosmos. Recalling his nearly two decades as Hawking's collaborator and friend, Leonard Mlodinow brings this complex man into focus, resulting in a unique portrait. In this "vivid and compelling account" (Wall Street Journal) Mlodinow puts us in the room as Hawking indulges his passion for wine and curry; confides his feelings on love, death, and disability; and brilliantly grapples with the deepest questions of philosophy and science.