Responding to the need for a comprehensive treatment of Mexican American English and its varied influences across multiple generations, this volume provides true insight into how language contact triggers language change, and illustrates previously under-recognised links to ethnolects of other migrant groups in different parts of the world. It demonstrates how the variety begins with Spanish interference features but evolves into a stable variety over time by filtering out some of the interference features and responding to forces such as exploitation of its speakers, education, and the need to develop solidarity. A large number of linguistic variables from multiple realms of language are analysed that provide a truly balanced picture of the divisions within the community across a range of linguistic levels such as syntax, phonology, prosody, accent, dialect, and sociolinguistics.