Albert Einstein's biography encompasses danger, romance, and a secret government project that could have destroyed the world. Readers discover that Einstein was defined not only by his equation E=mc2 and scientific theories that rewrote views of time, energy, and the universe, but also by his speaking out against prejudice and segregation. This absorbing narrative includes Einstein's work at Princeton's Institute for Advanced Study and his letter to President Franklin Roosevelt warning about Nazi nuclear weapons research and urging Roosevelt to support nuclear research in America. A man of peace, Einstein later admitted that this letter was his "one great mistake."