The document discusses different project management structures for organizing projects, including functional, projectized, and matrix structures. It provides details on how each structure works, its advantages and disadvantages, and considerations for choosing the appropriate structure based on factors like project characteristics, organizational needs, and the level of authority and resources allocated to the project manager. The key structures covered are the functional structure where different project segments are delegated to functional units, projectized structure with dedicated project teams, and matrix structure with dual reporting relationships to functional and project managers.