The concept of teacher leadership has gained attention from educational scholars and practitioners across the globe due to its success in improving outcomes for teachers and students. The Challenges and Possibilities of Teacher Leadership explores the theory and practice of teacher leadership through a variety of international scholarly and practitioner perspectives, surveying the field of teacher leadership conceptually and practically. Each chapter in this edited collection frames teacher leadership in terms of what is next for teacher leadership, how to foster teacher leadership, the impacts of teacher leadership and how to use teacher leadership to advance social justice agendas. International scholars in teacher leadership provide a range of case studies from countries across the world, including Brazil, Hong Kong, Australia, Chile, the USA and China, to offer a critical analysis of the concept of teacher leadership in terms of local cultures, organizational structures, and socioeconomic conditions. Offering valuable perspectives, primarily from qualitative studies in the form of case studies, document analyses, and literature reviews, The Challenges and Possibilities of Teacher Leadership is a timely resource for academics, scholars, practitioners, and school leaders who are interested in creating schools where the leadership capacity of teachers is encouraged to grow, positive change is enacted, teachers are engaged and effective, and students are learning.