This volume contributes to the emotional boom that the field of applied linguistics is currently witnessing. It includes cutting-edge empirical studies on the interplay between language and emotion that help expand our thinking and understanding on how foreign language learners and users experience, recognise, process and express emotions in different instructional and naturalistic settings. The interdisciplinary focus, methodological innovation, and the study of underrepresented groups and target languages covered in this volume will stimulate debate and inspire both established and young researchers to consider new variables and adopt innovative paradigms in their research designs.