Einstein for Beginners by Joseph Schwartz and Michael McGuinness
Amusing, irreverent, sophisticated and highly accessible, Einstein for Beginners is the perfect introduction to Einstein's life and thought.
Reaching back as far as Babylon (for the origins of mathematics) and the Etruscans (who thought they could handle lightning), this book takes us through the revolutions in electrical communications and technology that made the theory of relativity possible. In the process, we meet scientific luminaries and personalities of imperial Germany, as well as Galileo, Faraday, and Newton; learn why moving clocks run slower than stationary ones, why nothing can go faster than the speed of light; and follow Albert's thought as he works his way toward E = mc2, the most famous equation of the twentieth century.