This collection on ‘Teaching’ and ‘Learning’ (Im)Politeness (the inverted quote marks will be explained at the end of this section) combines research from the field of politeness studies with research on language pedagogy and language learning. Our aim is to fill the unfortunate gap between these research traditions in an endeavor to enrich the outlook of both constituencies, and to further engender a useful dialogue between (im)politeness theorists, language teachers, and Second Language Acquisition (SLA) researchers.