Amazon.com description: Product Description: Albert Einstein is synonymous with genius. 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 well as showing how Einstein developed his theories, "Einstein" reveals the man behind the science, from his early years and thought experiments in Germany, to his marriages and children, his role in the development of the Atomic Bomb and his work for Civil Rights groups in the United States. Drawing on new research and documents only recently made available, this book also includes items of rare facsimile memorabilia, to show you more than Einstein's groundbreaking theories. Documents include: postcard sent to Einstein by Mileva Maric, before she became his first wife; a letter written by Fritz Haber in 1911 to Einstein as he worked on his General Theory of Relativity; the telegram sent by Hendrick Lorentz, informing Einstein that his theory of deflection of light by the sun had been confirmed. This confirmed Einstein's principle of relativity; and, the letter Einstein wrote to President Roosevelt in 1939 warning him of the possibility that Germany could develop an atomic bomb.