This chapter discusses organizational structures and how companies can adapt them to today's markets. It covers classical organizational theorists like Fayol and Weber and their principles of organization. Different types of organizational structures are presented like tall vs flat, centralized vs decentralized, line vs staff vs matrix structures. Factors that impact organizational design choices are also examined, such as span of control and departmentalization. The chapter concludes with discussions on virtual organizations, outsourcing, empowering employees, and adapting to change through organizational culture.