This book introduces a new field of educational research called 'teacher learning,' as it applies to the teaching of languages. Up until recently, the study of second language teacher education has focused mainly on the knowledge base and specific skills needed for effective teaching. This book invites us to look at teacher education from a fresh point of view, through an exploration of the thinking and learning processes of individuals as they learn to teach. Seventeen original articles, based on studies done in North America, Europe, Asia, and Australia, provide examples of pioneering research into the ways that individuals learn to teach languages, and the roles that previous experience, social context, and professional training play in the process. The collection thus helps establish a research base for this newly developing field.