The document discusses different types of organization structures, including line, line and staff, functional, project, and matrix structures. It provides details on the key characteristics of each structure as well as their merits and demerits. The line structure is the oldest and simplest with a clear line of authority from top to bottom, but it can overburden managers and lack specialization. The line and staff structure introduces staff functions to support the core line functions through expert advice, but it can also lead to conflicts. Functional and project structures group employees by specialty or project, respectively, and matrix structures combine functional and project approaches.