To commemorate Joan Rubin's seminal article in 1975 which considered what the good language learner can teach us, this edited collection, with a foreword and a chapter by Rubin, provides a comprehensive overview of learner/learning issues and reviews the literature and research to date. It acknowledges those who have contributed to a perspective which was at the time quite revolutionary. The book provides a reference base, addresses theoretical issues and considers pedagogical implications. It identifies gaps in our current understanding and suggests useful research initiatives. And it considers how all of this relates to successful language learning by unique individuals in a variety of situations.