Construction projects embody the practical realization of design, engineering, and management principles, transforming ideas into tangible assets that serve society. This chapter examines the full project life cycle - from feasibility and planning to execution, delivery, and operation - highlighting the roles of key stakeholders and the importance of coordination among them. It explores various types of works, contractual structures, and regulatory frameworks that govern construction activities at national and international levels. Emphasis is placed on integrating technical, economic, and organizational aspects to ensure quality, efficiency, and long-term value throughout the project development process.