This open access book provides an updated and integrated analysis of the Advocacy Coalition Framework, more than thirty years after its conception. First devised in the 1980s to help explain change within public policy processes, the framework has been widely applied, criticized and revised over the last three decades, implemented by policy scholars across the globe, and in hundreds of different languages. Edited by the two foremost ACF scholars, this book analyses the current state and future directions of the Advocacy Coalition Framework. The first section provides a concise overview of the purpose of the framework, as well as its application in previous research. This is followed by eleven cross-section case studies that showcase some of the most exciting developments in ACF scholarship around the globe. It concludes with recommendations for adapting the ACF for future use, as well as new directions of research.