Book excerpt: Language in Use creatively brings together, for the first time, perspectives from cognitive linguistics, language acquisition, discourse analysis, and linguistic anthropology. The physical distance between nations and continents, and the boundaries between different theories and subfields within linguistics have made it difficult to recognize the possibilities of how research from each of these fields can challenge, inform, and enrich the others. This book aims to make those boundaries more transparent and encourages more collaborative research. The unifying theme is studying how language is used in context and explores how language is shaped by the nature of human cognition and social-cultural activity. Language in Use examines language processing and first language learning and illuminates the insights that discourse and usage-based models provide in issues of second language learning. Using a diverse array of methodologies, it examines how speakers employ various discourse-level resources to structure interaction and create meaning. Finally, it addresses issues of language use and creation of social identity. Unique in approach and wide-ranging in application, the contributions in this volume place emphasis on the analysis of actual discourse and the insights that analyses of such data bring to language learning as well as how language shapes and reflects social identity—making it an invaluable addition to the library of anyone interested in cutting-edge linguistics.