This book showcases how teacher educators from diverse backgrounds, contexts and realities approach English language teacher education with a critical stance. The book is organized around nine sections, each of which opens with theoretical discussions on how English language teaching is re-conceptualized with a critical lens, and complemented by a total of 28 practical applications chapters including practical ideas that extend and expand criticality within teacher education programs at pre- and in-service levels. Written by renowned scholars including Graham Hall, Lili Cavalheiro, and Mario López Gopar, the theoretical considerations chapters give an overview of current issues in the field, opportunities for criticality and its implications for teacher education. The practical application chapters showcase the ways in which teacher educators incorporate these critical approaches to their teacher education practices, ranging from critical and queer pedagogy to translanguaging to multilingualism, along with a critical reflection of the potentials and the challenges of this application. They are written by critically-oriented teacher educators/researchers from various parts of the world including Brazil, Germany, Morocco, Sweden, Turkey and the US, among others. With an explicit critical focus on English language teaching, this book provides a useful reference and resource for language teacher education programs around the world.