before finally revelling in the colossal, the celestial and the infinite. An eloquent introduction provides an overview of the central themes and expert commentaries introduce each section. Detailed panels provide bitesize information on key concepts and key thinkers - from the four elements to Cosmic Man and from the möbius strip to the Mandelbrot set - while thought- provoking quotations from philosophers, writers, artists and scientists interspersed throughout the artworks prompt a closer, more personal engagement with the images. This stunning treasury of artworks provides the perfect guide to a deeper contemplation of the world around us, allowing readers, in the words of William Blake, to 'see a world in a grain of sand, and a heaven in a wild flower, hold infinity in the palm of your hand, and eternity in an hour'.