From leading scholar and applied linguist Paul Nation, this book describes and explains the 20 most effective and efficient language teaching techniques and why they work. Backed by decades of research and expertise, Nation examines the principles of learning connected to these techniques, as well as the factors affecting their choice and usage. These techniques are organized around the four skills of listening, speaking, reading, and writing. For each skill, there is an opportunity for learning through meaning-focused use, an opportunity for learning through deliberate study, and a window for fluency development through working with easy material. Each technique is described and analyzed to demonstrate its learning goals and the principles of learning in use. In demonstrating key techniques and methods for language learning, this book is particularly useful for pre-service teachers and students in applied linguistics, TESOL, and language teaching. Each chapter also has a substantial list of research topics for projects or theses.