Lienhard Legenhausen is Professor Emeritus of Language Pedagogy and Applied Linguistics at the University of Münster, Germany. His research interests include the study of learner language, technology-enhanced language learning as well as learner-centred approaches to classroom learning/teaching. Together with Leni Dam, Denmark, he started the LAALE project (Language Acquisition in an Autonomous Learning Environment) in which they systematically observed the linguistic development of a class of Danish mixed ability learners over a period of four years. For the last 12 years he has taught methodology courses and linguistics in the English and German departments of the National University of Cherkasy, Ukraine. He became a member of the LASIG committee in 2008, and was a joint coordinator together with Leni Dam for six years.