'This much-needed book will be an excellent text for courses in Language Acquisition within second language teacher education programs. There is a wealth of new knowledge, new vocabulary, and new perspectives which not only contribute to specialized aspects of teacher training but will enrich students' general education as well'. Patsy M. Lightbown, Professor of Applied Linguistics, Concordia University, Quebec, Canada 1-low do people learn languages? Recent researchers have produced a vast body of knowledge about how learning takes place. Geared specially to the needs of language teachers, this lively and readable book presents these ideas for the first time in an integrated form. Central topics whose relevance to teaching is discussed include: * the acquisition of grammar, pronunciation, vocabulary and conversation * the processes of language use and memory • variation between individual students * the role of language in the classroom and as input for learning * the goals of language learning and teaching in society. Vivian Cook also analyses the teaching implications of four general models of learning and concludes with a discussion of the learning justification for five current styles of language teaching.