Book excerpt: The Energy Transition, the inevitable shift away from cheap, centralized, largely fossil-based energy systems, is one of the core challenges of our time. This book provides a coherent and novel insight into the nature of this challenge and possible strategies to accelerate and guide such transitions. It brings together prominent European scholars and practitioners from the fields of energy transition research and governance to draw attention to the current complex dynamics in the energy domain, and offer elegant and provocative explanations for current crises and lock-ins. They identify multiple energy transition pathways that emerge and increasingly compete, and emphasize the need and possibilities for novel governance. By analysing the complexity of energy transition processes and the difficulties in shifting to sustainable pathways, this text questions the extent to which actually governing energy transitions is already reality, just an illusion, or a bare necessity.