This international handbook provides a sophisticated re-examination of self-study of teaching and teacher education practices research 16 years after the publication of the first edition by Springer (2004). Through six sections, it offers an extensive international review of research and practices by examining critical issues in the self-study field today. They are: (1) Foundations of Self-Study, (2) Self-Study Methods and Methodologies, (3) Self-Study and Teaching and Teacher Education for Social Justice, (4) Self-Study Across Subject Disciplines, (5) Self-Study in Teacher Education and Beyond, and (6) Self-Study across Cultures and Languages. Exemplars, including many recent studies, illustrate the impact of this well-established research movement in teacher education in the English-speaking world and internationally. Readers of the handbook will benefit from a comprehensive review of the field of self-study that is accessible to a range of readers; theoretically and methodologically rich; highly practical to both novices and experienced practitioners; and offers a vision for self-study internationally over the next two decades.