Book excerpt: This book introduces and explores the nature of large scale reform, and offers a fresh insight into the importance of social capital and professional development leadership for teachers and school management. It synthesizes research on the role of the professional development leader and the importance of social capital in schools, and examines its potential to impact large scale, system-wide, reform projects. The text presents a range of international examples and theories from renowned researchers and educationists, which illustrate the challenge of raising the prominence of education social capital in schools. Considering crucial research that informs effective adult learning interventions, underlying themes supporting constructivist and transformative interventions are identified and woven into the narrative. Factors and variables needed to encourage and implement initiatives are examined, and each section is accompanied by case studies from around the world. The book is split into five sections and twelve parts which include: -The Lesson of Large Scale Reform for Leadership Development -Assessment of Wide Scale Educational Reform Initiatives -Developing Social Capital through National Education Reform -System Improvement through Professional Learning Communities Large Scale School Reform and Social Capital Building will be of interest to policy makers and system reform leaders, along with researchers and postgraduate students with a focus on continuous professional development, educational reform and school leadership.