The main who invented management Drucker Peter creator text United State of America harvard Business Review 2008 monographic vii, 211p. 12cm. Effective management is achieved by setting clear objectives, empowering employees, focusing on customer needs, encouraging innovation, and measuring success through organizational results. His ideas remain widely applied in modern management because they promote accountability, efficiency, and long-term organizational performance. Part I. The manager's Responsibilities Part II. The Executive's World includes indexs eng. The Theory of the Business 658.4 Introduction 9781422125922 DCC Library 20260706125823.0 eng.