From his remarkable theory of relativity and the famous equation E=mc2 to his concept of a unified field theory, no one has contributed as much to science in the last century as Albert Einstein. Drawing on new research and reproducing documents only recently made available, Einstein reveals the process behind the work and the man behind the science: his early years and experiments in Germany, his marriages and children, his role in the development of the atomic bomb, and his involvement with civil rights groups in the United States.