Book excerpt: This book presents the latest research on understanding language teacher identity and development for both novice and experienced researchers and educators, and introduces non-experts in language teacher education to key topics in teacher identity research. It covers a wide range of backgrounds, themes, and subjects pertaining to language teacher identity and development. Some of these include the effects of apprenticeship in doctoral training on novice teacher identity; the impacts of mid-career redundancy on the professional identities of teachers; challenges faced by teachers in the construction of their professional identities; the emerging professional identity of pre-service teachers; teacher identity development of beginning teachers; the role of emotions in the professional identities of non-native English speaking teachers; the negotiation of professional identities by female academics. Advances and Current Trends in Language Teacher Identity Research will appeal to academics in ELT/TESOL/applied linguistics. It will also be useful to those who are non-experts in language teacher education, yet still need to know about theories and recent advances in the area due to varying reasons including their affiliation to a teacher training institute; needs to participate in projects on language teacher education; and teaching a course for pre-service and in-service language teachers.