In the context of an Emory Symposium on Cognition honoring the enormous contributions to cognitive psychology of Ulric Neisser, this book brings together ecological approaches to various aspects of cognition and its development. Well-known former students and colleagues of Neisser articulate their views on perception, memory, and culture. There is a strong developmental component, with chapters on infant perception, infant problem solving, and the cognitive profile of Williams Syndrome, as well as two chapters that consider philosophical issues related to cognitive psychology.