explanations of perceptual-state formation, emphasizing formation of perceptual categorization. In the book's second half, Burge discusses what a perceptual system is. Exploration of relations between perception and other primitive capacities-conation, attention, memory, anticipation, affect, learning, and
imagining-helps distinguish perceiving, with its associated capacities, from thinking, with its associated capacities. Drawing mainly on vision science, not introspection, Perception: First Form of Mind is a rigorous, agenda-setting work in philosophy of perception and philosophy of science.