In clear and eloquent language, Parker helps us appreciate the breadth and richness of Einstein’s vision, discussing the renowned scientist’s lesser-known contributions, from Einstein’s theories supporting time travel, to his research on curved space, the cosmological constant, black holes, wormholes, gravity waves, and cosmic lenses, to quantum theory, and beyond. Parker also discusses Einstein’s reluctant connection with atomic weapons, his pacifist philosophy, his quest for the elusive unified theory that occupied thirty years of his life, and the relationship of his work to the recent ‘hot’ area of superstrings.