The proposed stakeholder classification model consists of just four communities, each one based on the commonality of main interests and behavior. This model features an accurate and stable identification process to increase effective communication and drastic reduce relationship complexity. A systemic approach is proposed to analyze both stakeholder requirements and expectations. The approach aids in detecting otherwise unclear stakeholder requirements and/or hidden stakeholder expectations. An interactive communication model is presented along with its individual and organizational frames of reference. Also presented are relevant cues to maximize effective and purposeful communication with key stakeholders as well as with the stakeholder network. The importance of satisfying not only the project requirements but also the stakeholder expectations is demonstrated to be the critical success factor in all projects. An innovative approach based on the perceived value and key performance indicators shows how to manage different levels of project complexity. The book also defines a complete structured path to relationship effectiveness called "Relationship Management Project," which can be tailored to enhance stakeholder and communication management processes in each one of the project management process groups (i.e. initiating, planning, executing, monitoring and controlling, and closing). The book concludes with a look ahead at Project Management X.0 and the stakeholder-centered evolution of both project and portfolio management.