Michio Kaku is a world-renowned theoretical physicist and best-selling author. His goal in life is to complete Einstein’s quest for a “theory of everything” that can unify all physical laws into a single equation. He is the co-founder of string field theory, a division of string theory; the latter is a leading contender for that title. Kaku’s popular books on the frontiers of physics include Hyperspace, Parallel Worlds, and Visions. After graduating summa cum laude from Harvard, Kaku received his Ph.D. from the University of California at Berkeley and taught at Princeton University. He has been Henry Semat Professor of Theoretical Physics at the City University of New York for more than twenty-five years. His nationally syndicated weekly radio program airs in 130 cities across the United States.