By leveraging the core contributions of both concepts, a new idea is developed: Reverse Social Innovation. This unexplored notion is rigorously examined through a novel conceptual model and validated via mixed-method research. Case studies showcase instances of Reverse Social Innovation, while content analysis refines the model. The book is valuable for practitioners, researchers, and students. Practitioners can explore the potential of Reverse Social Innovation for impactful change. Researchers delve into the uncharted territory of Reverse Innovation and its intersections. Students engage with a cutting-edge research field, opening doors for future exploration.