Community Partnered-Participatory Research (CPPR) is based on and utilizes community engagement as its central method and principle. In this chapter, we explain the key differences between engaging the community vs merely involving the community. The chapter also reviews the plan-do-action cycle of work that is used in each stage of CPPR. We define five key values of CPPR: respect for diversity, openness, equality, redirected power (empowerment), and an asset-based approach. In addition, we present 12 operational principles, which guide work throughout every stage of all CPPR initiatives.