Cognitive science, which appears as an articulated group of research programs whose aim is to constitute a science of the mind, raises a number of issues from the point of view of philosophy of science. This chapter will sample the field by dealing with two main topics. The first one is the hypothesis of a modular architecture of the mind, which has occupied cognitive science since more than 30 years. The second part of the chapter is devoted to the foundations and limits of cognitive science, dealing notably with the functionalist framework (in particular, the computational theory of the mind) and the so-called language of thought hypothesis. We conclude by saying a few words about the division of labor among philosophers who are interested in cognition.