Contact Linguistics is a critical investigation of what happens to the grammars of languages when bilingual speakers use both their languages in the same clause. It consolidates earlier insights and presents the new theoretical and empirical work of a scholar whose ideas have had a fundamental impact on the field. It also shows that bilingual data offer a revealing window on the structure of the language faculty. Carol Myers-Scotton examines the nature of major contact phenomena, especially lexical borrowing, grammatical convergence, codeswitching, first language attrition, mixed languages,...