This Element provides readers with an overview of major approaches, concepts, and research on language teacher emotions (LTE) along with related pedagogical approaches. It begins by situating LTE within the context of the affective turn in language education. The discussion then moves through psycho-cognitive approaches, followed by critical perspectives on LTE, highlighting key concepts and research contributions within each framework. The Element next explores pedagogical approaches to LTE, offering practices that can be used in teacher education programs alongside a set of reflective questions that foster critical inquiry on emotions among language teachers. Finally, it addresses ethical concerns and outlines future directions for LTE research.