Book excerpt: Understanding the dynamics of trust is an imperative undertaking for educational leaders. In this book, using an ecological perspective of the lifecycle, the authors situate trust as an essential ingredient of school leaders’ moral agency and ethical decision making. Based on their 15 years of research on trust in education, the authors describe the nature and dimensions of trust, its importance and imperative, and its fragility and usefulness for school leaders, positioning them as trust brokers in school organizations.