With English-medium higher education burgeoning in Europe and elsewhere outside the English-speaking world, this book is the first to offer an ethnographically-embedded analysis of such classroom discourse by taking cognizance of English functioning as a lingua franca (ELF) in international student groups. By virtue of investigating one such educational programme in its entirety, the study also enlarges the present knowledge on ELF discourse as it offers novel insights into the interactional dynamics that shape and develop an educational community of practice.