Based on extensive research in the field, including the outcomes of a five-year project on school improvement and professional learning in Australia and New Zealand, this book identifies the challenges that school leaders face when leading professional learning and development in their schools as part of an improvement agenda. Renowned professional development expert, Helen Timperley, has collaborated with a team of prominent authors to uncover the reasons underpinning these challenges and to provide practical strategies on how to address them. Case studies, excerpts from real teachers' experiences, and step-by-step examples of useful strategies give school leaders the tools they need to tackle complex challenges in both primary and secondary settings.