This presentation explores the theories, methods, and strategies of commercial negotiation. It discusses the different aspects of negotiation, such as seller and buyer perspectives, and the role of product or service. It also examines the various factors and methods for managing conflicts and engaging stakeholders. Additionally, it delves into the different theories and concepts of commercial negotiation, including structural, processual, integrative, strategic, and behavioral approaches. Overall, this presentation provides valuable insights into the world of commercial negotiation.