From the work that made modern scientific thought and his important discoveries, to his later musings on his landmark findings and his philosophical essays on Zionism and other important issues of the 20th Century, Einstein is the most extensive anthology of the scientist, and the only one to provide the wide breadth of his work. The works included in the anthology include: The Principle of Relativity (1920); Space-Time (1929); About Zionism (1930); Cosmic Religion (1931); The World As I See It (1934); The Evolution of Physics (1938); The Meaning of Relativity (1945); and, Out of My Later Years (1950) At the beginning of each chapter, Stephen Hawking gives a short summary of the work, highlighting its significance, followed by an unabridged reproduction of Einstein's original essay.