John R. Taylor introduces the theory of Cognitive Grammar, placing it in the context of current theoretical debates about the nature of linguistic knowledge, and relating it to more general trends in cognitive linguistics. The central concepts of the theory are explained in clear, non-technical language, and are applied to in-depth discussions of a range of topics in semantics, syntax, morphology, and phonology. Suggestions for further applications of the theory are contained in the numerous study questions accompanying each of the main chapters.