She focuses on post-adolescent sociolinguistic modification, particularly with respect to community language change. She has published in Language Variation and Change and Language in Society. She is a co-editor of the Routledge Studies in Language Change series. Isabelle Buchstaller is professor for varieties of English at Leipzig University. Her research investigates language variation and change, including the mechanisms of intra-speaker instability. Her monograph Quotatives: New trends and sociolinguistic implications appeared in 2014. She is a co-editor of the Routledge Studies in Language Change series.