The article discusses project management principles and practices for business, engineering, and technology. It covers topics like project conception, planning, cost estimating, quality management, risk management, and project execution. The main goal is to provide a comprehensive guide on how to effectively manage projects in various contexts. The researchers use a systems approach and systems engineering to outline the project development cycle and emphasize the importance of project organization, teamwork, and communication. Key findings include the significance of project selection, portfolio management, and international project management in the corporate setting.