This document summarizes the evolution of management thought from classical to modern perspectives. It discusses early theorists like Taylor who developed scientific management, Fayol who proposed administrative management principles, and Weber who described bureaucratic management. It also covers the human relations movement sparked by the Hawthorne Experiments and behavioral science approaches. Later, systems thinking, quantitative analysis, and contingency approaches emphasized adapting to different situations. Overall, the document presents an overview of the historical development and integration of various management theories.