A beautifully packaged, very brief hardback (80 pages), which explains seven key concepts in physics. Aimed at the intelligent, non-specialist reader, the book covers Einstein's General Theory of Relativity, quantum mechanics, the cosmos, elementary particles, quantum gravity, probability and the heat of black holes, and how to think about our own existence and the nature of consciousness. You will know more at the end of the book than you did at the beginning, and your head will spin.