"Factors Affecting Community Participation" is a scholarly book that addresses the critical aspects of community members' involvement in development processes. It highlights the evolution of participatory approaches that gained prominence in the 1980s and late 1990s. The book examines how active community participation in various phases of development not only increases the quantity and utility of community resources but also strengthens the community's capacity and fosters member engagement. By analyzing a slum upgrade program in Addis Ababa, it identifies factors that influence participation and the impact of that participation on the program's progress and goal achievement. The findings emphasize the importance of active community involvement and provide valuable insights for enhancing participatory approaches in community development. This book serves as a useful reference for academics, researchers, and organizations committed to human-centered development approaches.