Book excerpt: In natural resource management research, best practice implies the participation of community members, research or development teams and other stakeholders to jointly identify research and development parameters and contribute to decision making. Ideally, the research or development process itself generates a situation of empowerment in which participants transform their vision and become able to take effective action. Used increasingly widely in resource management, this process is known as Participatory Development Communication (PDC).This book presents conceptual and methodological issues r.