This document summarizes the evolution of management perspectives over time from the classical perspective in the late 19th century to more recent developments. It traces the development of scientific management, administrative principles, bureaucratic organizations, and humanistic perspectives. Later perspectives included management science, systems thinking, and contingency views of adapting management styles to organizational contexts. The human relations movement emerged from the Hawthorne studies focusing on positive treatment of employees. Maslow's hierarchy of needs and McGregor's Theory X and Y also influenced human resources perspectives.