Brain structure involved in visual processing is examined in this new volume of The Cerebral Cortex . Ophthalmologists, particularly neuroophthalmologists, and visual scientists concerned with visual processing will benefit from this source book of detailed mammalian visual anatomy. In most cases, contributors draw from previously published work. Earlier volumes, "Cellular Components of the Cerebral Cortex," and "Functional Properties of Cortical Cells," also edited by Peters and Jones, were valuable as independent books. Together, the three volumes feature scholarship and high-quality production. "Ophthalmologists, particularly neuro-ophthalmologists, and visual scientists concerned with visual processing will benefit from this source book of detailed mammalian visual anatomy." Consider the following remarks in Professor Van Essen's brilliant chapter on primates, which compares visual potential of the monkey brain with that of the human brain: "If size of extrastriate visual areas [relative to the striate cortex area] is comparable to that in monkeys, there is room for literally