The examination and evaluation of folk psychology and lay cognition has been carried out predominantly in two domains: personality and social psychology, and the philosophy of psychology. Yet, work in these two areas has largely proceeded independently. The assumption on which this volume is founded is that a proper comparison between scientific cognition and folk ways of thought rests on an adequate study of both science and folk psychology. With this in mind, the author provides an analysis of the intricate, and often hidden, links between these two spheres. In doing so, the book poses two related questions. First, what is the nature of folk psychology and how is it related to scientific psychology? Second, of what should the relationship between folk psychology and scientific psychology consist? In answering these two questions, the author draws extensively from research and arguments in social psychology and social cognition, cognitive science, and the philosophy of science.The interdisciplinary approach gives the book a unique perspective that will be of interest to scholars working in social psychology, cognitive science, and philosophy of science. Written in a concise and accessible style, this volume is suitable for undergraduate and graduate students as well as a general psychological audience.