Joe McEvoy studied at Pennsylvania and at the University of London for his PhD in physics. He returned to the USA as a research associate at the RCA Research Laboratories in Princeton, New Jersey. For the following 15 years he worked in solid state physics as a research scientist in the USA, Switzerland and Britain. His two previous books Introducing Stephen Hawking, and Introducing Quantum Theory have been acclaimed worldwide and translated into a dozen languages. In October 2006, he received the prestigious founder's award given by the American School in London for Inspiring and Dedicated Service to Education.