This book brings critical perspectives towards questions of how precarity and precariousness affect the work of leaders and educators in schools and universities around the world. It theorises the effects of precarity, and the experiences of educators working in precarious environments. The work of school improvement takes time. Developing a highly-skilled and confident teaching workforce requires a long-term investment and commitment. Schools in vulnerable communities face higher rates of turnover and difficulty in staffing than advantaged schools do. Tackling the big issues in education - inequity, opportunity gaps, democracy and cohesion - also takes time. Education systems and sectors around the globe are functioning in increasingly casualised workforce environments, which has implications for leadership in schools and in higher education institutions. Precarity also holds serious implications for policymakers and for the leaders and educators who have to enact those policies. This book brings together experts in the field to offer critical perspectives on questions of how we might theorise the effects of precarity, and the experiences of those people working in precarious environments. Educational Leadership and Policy in a Time of Precarity will be a key resource for academics, researchers, and advanced students of education leadership and policy, educational administration, research methods, and sociology. This book was originally published as a special issue of the Journal of Educational Administration and History.