This sequel to Ian Stewart's books on chaos ("Does God Play Dice?") and symmetry ("Fearful Symmetry"), explores the wider field of complexity theory, tackling the questions of how complexity arises in nature, and how life overcomes chaos and entropy to create developing order. Co-written with biologist Jack Cohen, this layman's guide ranges across the central areas of modern science, from quantum mechanics and cosmology to evolution and intelligence. The reader is encouraged to look at the world in a new way.