This document discusses different types of organizational structures and designs. It describes centralization vs decentralization in decision making. The main organizational structures covered are functional, divisional, matrix, line and staff, and project structures. The functional structure groups employees by similar job functions. The divisional structure groups employees responsible for particular products or markets. The matrix structure combines functional and divisional reporting relationships. The line and staff structure combines a line structure with staff support departments. And the project structure organizes teams for specific projects with project managers coordinating resources.