This unique volume offers a comprehensive discussion of essential theoretical and methodological issues concerning the pivotal role of working memory in second language learning and processing. The collection opens with a foreword and introductory theoretical chapters written by leading figures in the field of cognitive psychology. Following these are three research sections containing chapters providing original data and innovative insights into the dynamic and complex relationships between working memory and specific areas of second language processing, instruction, performance and development. Each section concludes with a commentary which is written by a noted SLA researcher and which charts the course for future research. This book provides a fascinating collection of perspectives on the relationship between working memory and second language learning and will appeal to those interested in the integration of cognitive psychology with SLA research.