In this refreshingly clear book, Brian Greene, a leading string theorist, relates the scientific story and the human struggle behind the search for the ultimate theory. String theory, as the author vividly describes, reveals a vision of the universe that is sending shock waves through the world of physics. Thrilling and revolutionary ideas such as new dimensions hidden within the fabric of space, black holes transmuting into elementary particles, rips and punctures in the space-time continuum, gigantic universes interchangeable with minuscule ones, and a wealth of others are playing a pivotal role as physicists use string theory to grapple with some of the deepest questions of the ages. With authority and grace, The Elegant Universe introduces us to the discoveries and the remaining mysteries, the exhilaration and the frustrations of those who relentlessly probe the ultimate nature of space, time, and matter.