This unit introduces definitions, key concepts, and frameworks for understanding the practice of organisational change. The unit explores planned and unplanned change in depth, by exploring the benefits, challenges, and opportunities associated with both approaches to change. The unit is founded in evidence-based research and practice-based application which guide implementation in contemporary organisations. The unit content has been developed to promote inquiry, acknowledge the realities of contemporary management, and incorporate new learning about change processes and outcomes, to help employees, managers, and organisations thrive in uncertain times.