Introduction, The Nature of Language, On the Nature, Use and Acquisition of Language, Magic Words: How Language Augments Human Computation, Rules of Language, Language and Computation, Can Machines Think?, Understanding Understanding: Syntactic Semantics and Computational Cognition, Understanding Natural Language, Language and Experience, Individualism, Computation, and Perceptual Content, Externalist Explanation, Ecological Content, Naturalized Semantics, Advertisement for a Semantics for Psychology, Putting Information to Work, Biosemantics, Acknowledgments