Manager le changement dans l'action sociale by J. Miramon is a comprehensive guide to implementing organizational change within social action frameworks. Published in 2001 by Éditions de l'École Nationale de la Santé Publique, this work addresses the complexities of adapting social initiatives to evolving societal needs. Miramon, a consultant and academic affiliated with the École Nationale de la Santé Publique, draws on practical experience to outline strategies for navigating resistance, fostering stakeholder engagement, and measuring impact in social programs. The book emphasizes systemic thinking, balancing theoretical principles with actionable steps for practitioners. It explores case studies from public health and social services, illustrating how incremental and transformative changes can coexist. Key themes include participatory approaches, resource allocation, and aligning organizational culture with mission-driven goals. While rooted in French social policy contexts, the principles are adaptable to global challenges such as inequality reduction and community development. The text avoids prescriptive formulas, instead advocating for context-specific solutions tailored to the unique dynamics of each social action project. Miramon’s analysis underscores the importance of leadership in driving change, highlighting the role of communication, empathy, and data-driven decision-making. The work serves as both a reference for professionals and a training manual for emerging leaders in social sectors. Its focus on sustainability ensures relevance in an era of rapid social and technological shifts. By bridging academic rigor with field experience, the book remains a valuable resource for understanding the interplay between organizational management and social impact.