This book is based on the findings of a three-year examination of many practical experiences of peace practice. The project conducted 26 case studies on various kinds of peace efforts in a number of geographical areas and contexts. They project then brought in over 30 peace practitioners to review and reflect on the findings of the case studies. They identified eleven primary issues that were central to effective peace practices: linkages between levels in peace work, roles and relationships between insider and outsider peace agencies, relationship between context analysis and strategy development, tradeoffs between working for the reduction of violence and for social justice, dealing with deliberate disruptions of peace processes, special issues and roles for humanitarian and development organizations, indicators of impact, criteria for effectiveness, inadvertent negative impacts, the role and impact of dialogues, and the role and impact of peace trainings. The goal of the book is to describe the effectiveness of peace practices.