It looks so easy. Open your eyes, and immediately there is a world of objects in glorious Technicolour. It takes no time or effort - perception just happens. Or

In this book Paul Chivington presents an exciting challenge to each of us to be able to look at life, the world, and the universe in a totally new light. Based

Most of us believe that we are unique and coherent individuals, but are we? The idea of a "self" has existed ever since humans began to live in groups and becom

Why do we need two eyes? Why are all cats grey at night and appear to move faster the day? Why is the sky blue and the setting sun red? This book explains the m

Looks at various types of optical illusions, including distortion illusions, motion illusions, color illusions and afterimages, and impossible objects and image