The research group "Peacebuilding, Disarmament, Demobilization, and Reintegration" of the Agency for Reincorporation and Normalization (ARN) is an initiative that forms part of the Knowledge Management Strategy 2Q, l5-2018 of the ARN, and its purpose is to make visible the experiences developed by the institute in terms of peacebuilding, disarmament, demobilization, and reintegration, both nationally and territorially.Aiming to disseminate these experiences, the ARN research group developed this study on community reintegration, which consists of eight chapters. The first chapter presents a literature review on attempts to define community reintegration, as well as identifies debates, consensus, and voids in researches and studies that have tried to determine the factors of its success or failure. The second chapter describes the Community Reintegration Model implemented by the ARN and presents an analysis of that model based on the concept of moral imagination proposed by J. Lederach. Subsequently, the impact of international cooperation on the process of the Community Reintegration Model is examined in the country's new political perspective as a result of the signing of the peace agreement. Starting with the fourth chapter and to the end of the book, different activities and experiences are described and analyzed, which are carried out within the framework of the model in the following territorial groups: Atlántico, Bolívar, Bogotá and Antioquia, Bajo Magdalena Medio and Tolima.The methodologies involved in these chapters include documentary work, participatory action research, the conversion of tacit knowledge to explicit knowledge through systematizations, and case studies.