This manual seeks to strengthen organizational capacity by providing tools and methods for self-assessment. It explains key areas for organizational capacity building, including representative decision making; communication systems; collaboration with other groups; negotiation for services; identification and prioritization of problems; implementation of activities; lobbying for local interests; clarity of vision and purpose; systems for raising revenue; mobilizing human capital; and monitoring and evaluation.Capacity building can be understood as an explicit effort to improve an organization’s performance in relation to its purpose, context, resources and sustainability. The self-assessment process presented in this field guide is designed to help organizations recognize their own potential and decide for themselves how best to address the challenges they face. This guide has been written specifically for local intermediary organizations working with community-based partners. Throughout the guide there are tips on how to adapt and create exercises and methods to fit the specific needs of the organization with which the work is carried out as well as the local context. The margins are used to summarize the main points and the text is broken up by useful graphs, charts and graphics that assist in the explanation of the main concepts.The guide contains nine chapters, appendices, a glossary of key concepts and a list of recommended resources.