This book contains new articles by leading philosophers and linguists discussing a promising philosophical framework distinct from currently dominant ones: Linguistic Realism. As opposed to Nominalism and Chomskyian Conceptualism, this approach distinguishes between use of language, knowledge of language, and language as such. The latter is conceived as part of the realm of abstract objects. The authors show how adopting Linguistic Realism overcomes entrenched problems with other frameworks and suggest that Linguistic Realism will best serve those interested in formal linguistics, the cognitive dimension of natural language, and linguistic philosophy. The essays offer different perspectives on Linguistic Realism, either supporting this paradigm or taking it as a starting point for developing modified conceptions of linguistics and for further tying linguistics to the kind of formal theories of sensory cognition that were pioneered in visual perception by David Marr-whose work is predicated on exactly the object/knowledge distinction made by Linguistic Realists.