Einstein’s revolution traces back to his key papers of 1905 in which he questioned the classical understanding of our concepts of space, time, matter, gravitation, and radiation, shaking the foundations of classical physics. These papers challenged the idea of light as a wave, gave striking proof for the existence of atoms, led to a new understanding of space and time, which came to be known as the “special theory of relativity,” and identified mass as a form of energy. Ten years later, Einstein completed his relativity revolution with his masterpiece, the general theory of relativity, which became the source of modern cosmology. Albert Einstein : Creator of a Worldview deals with these developments, with the ideas which led to them and with their consequences. It also describes briefly Einstein’s activity outside the world of physics and his reaction to major issues on the agenda of mankind in his time.