Quantum Theory Cannot Hurt You by Marcus Chown explains relativity, quantum theory and the Big Bang in a beautifully clear and entertaining way.
Marcus Chown is an award-winning writer and broadcaster. Formerly a radio astronomer at the California Institute of Technology in Pasadena, he is currently cosmology consultant of the weekly science magazine New Scientist. His most recent books are We Need to Talk About Kelvin, Quantum Theory Cannot Hurt You, The Never-Ending Days of Being Dead, Tweeting The Universe and What A Wonderful World. He also wrote The Solar System, the bestselling app for iPad, which won the Future Book Award 2011.