This volume offers the first book-length treatment of second and foreign language learners' acquisition of pragmatics. Beginning with a survey of the significantly better developed field of first language developmental pragmatics, the book provides a comprehensive discussion of developmental interlanguage pragmatics. The volume also presents an up-to-date account of research findings and covers such central issues as the theoretical and empirical approaches to L2 pragmatic development, the relationship of pragmatic and grammatical development, and the influence of learning contexts, instruction, and individual differences.