The book presents a series of studies that probe young children's knowledge of a relatively well-defined, abstract semantic realm, that of definite and indefinite reference. Topics investigated include children's knowledge of the difference between referring to particular objects (e.g. I have a dog, which refers to a particular dog) and no particular objects at all (e.g. I don't have a dog, which makes reference to no particular dog) and their knowledge of how to account for the knowledge of their listeners in situations, e.g. in which they have in mind a particular reference but their listen...