As instruction in second and foreign languages has placed more emphasis on using language to communicate in social contexts - an area referred to as pragmatics - researchers have increasingly investigated how pragmatics is acquired in the classroom. This book offers a comprehensive and essential overview of research on the acquisition of pragmatics in second and foreign language classrooms, offering both the necessary theoretical background to the field as well as original research carried out in classroom contexts. It should be of interest to researchers and language teachers alike.