A union of Cognitive Linguistics and Sociolinguistics was bound to happen. Both proclaim a usage-based approach to language and aim to analyse actual language use in objective ways. Whereas Sociolinguistics is by nature on the outlook for language in its variety, CL can no longer afford to ignore social variation in language as it manifests itself in the usage data. Nor can it fail to adopt an empirical methodology that reflects variation as it actually occurs, beyond the limited knowledge of the individual observer. Conversely, while CL can only benefit from a heightened sensitivity to social aspects, the rich, bottom-up theoretical framework it has developed is likely to contribute to a much better understanding of the meaning of variationist phenomena. The volume brings together fifteen chapters written by prominent scholars testifying of rich empirical and theoretizing research into the social aspects of language variation. Taking a broad view on Cognitive Sociolinguistics, the volume covers three main areas: corpus-based research on language variation, cognitive cultural models, and the ideologies of sociopolitical and socio-economic systems.