Book excerpt: Second Language Learning and Language Teaching provides an introduction to the application of second language acquisition research to language teaching. Assuming no previous background in second language acquisition or language teaching methods, this text starts by introducing readers to the basic issues of second language acquisition research. It then examines how people learn particular aspects of the second language, such as grammar, vocabulary, pronunciation and the writing system, and at the strategies they adopt in their learning and the differences between individuals. Final chapters look at second language learning in a broader context – the goals of language teaching and how teaching methods relate to SLA research. This newly updated fifth edition builds on the comprehensive scope of earlier editions while also addressing more recent developments in the field, particularly multilingual approaches to language teaching.