This training manual was developed as a guide in facilitating the training course on Constructive Engagement and Policy Advocacy under the project entitled: “Building capacity of VNFU leaders and staff on policy advocacy” funded by AsiaDHRRA, a member of Agricord. The training manual is intended to guide and assist trainers and facilitators in building capacities of farmer leaders and staff of farmer’s organizations in constructive engagement and policy advocacy and help inB uence government to issue, legislate and implement policies, programs and investments that response to the needs of small farmers. Policy Advocacy is a key task of VNFU as mandated by the 6^th Congress held last July 2013. This training manual is expected to help VNFU in implementing capacity building interventions on policy advocacy at all levels of the organization.