Hans-Georg Wolf holds the chair of Development and Variation of the English Language at the University of Potsdam, Germany. He is co-editor of a series on cognitive linguistic studies in cultural contexts and serves on the editorial board of several journals focused on language and culture, as well as World Englishes.Frank Polzenhagen is Professor of English Linguistics at the University of Kaiserslautern-Landau (RPTU), Germany. His research and writing focus on the study of second-language varieties of English from a cognitive sociolinguistic perspective.