The role of interaction and corrective feedback is central to research in second language learning and teaching, and this volume is the first of its kind to explain and apply design methodologies and materials in an approachable way. Using examples from interaction, feedback and task studies, it presents clear and practical advice on how to carry out research in these areas, providing step-by step guides to design and methodological principles, suggestions for reading, short activities, memory aids and an A-Z glossary for easy reference. Its informative approach to study design, and in-depth discussions of implementing research methodology, make it accessible to novice and experienced researchers alike. Commonly used tools in these paradigms are explained, including stimulated recalls, surveys, eye-tracking, metanalysis and research synthesis. Open research areas and gaps in the literature are also discussed, providing a point-of-departure for researchers making their first foray into interaction, feedback and task-based teaching research.