Hubel begins by explaining the structure and function of the retina and visual areas of the brain, then proceeds to more complex phenomena, such as how the brain and eyes together produce stereoscopic and color vision. A Nobel Prize winner who has studied vision for over 30 years, he combines expertise with lucid style and an ability to cut through details to the essential (and fascinating!) point. Unusually attractive, clear illustrations complement his discussion. This book, #22 in the "Scientific American Library" series, continues the tradition of making complex scientific topics understandable to the nonspecialist.