Book excerpt: Biculturalism and Spanish in Contact: Sociolinguistic Case Studies provides an original and modern analysis of the field of language change and variation with a specific focus on Spanish as a language in contact. This edited collection, focuses on diachronic variationist approaches to the Spanish language in contact with other languages from a historical sociolinguistics perspective. Topics covered include: language planning and policies, education, biculturalism, linguistic variation issues in the Spanish of the southwestern United States, and other socio-historical and anthropological aspects of the contact situation.