This volume focuses on how far the policies, principles and practices of foreign language teaching and learning are, or can be, informed by theoretical considerations and empirical findings from the linguistic disciplines. Part I deals with the nature of foreign language learning in general, while Part II explores issues arising from linguistic, socio-political, cultural and cognitive perspectives. Part III and IV then consider the different factors that have to be taken into account in designing the foreign language subject and the various approaches to pedagogy that have been proposed. Part V finally addresses questions concerning assessment of learner proficiency and the evaluation of courses designed to promote it.