In this, his first book aimed at the general reader, Gerald Edelman describes how consciousness arises in complex brains and how it is related to evolution, to the development of the self, and to the origins of feelings, learning, and memory. Edelman's theories offer a solution to the mind-body problem. An understanding of the workings of consciousness in scientific terms would be of enormous value in all areas of science, in medicine and psychiatry, and in the humanities.