The God Equation by Michio Kaku

A majestic story David Bodanis Financial Times From the international bestselling author of Physics of the Impossible and Physics of the Future This is the story of a quest to find a Theory of Everything. Einstein dedicated his life to seeking this elusive Holy Grail a single revolutionary god equation which would tie all the forces in the universe together yet never found it. Some of the greatest minds in physics took up the search from Stephen Hawking to Brian Greene. None have yet succeeded. Paperback softback