The document discusses three major management theories: Frederick Taylor's scientific management, Henri Fayol's administrative theory, and Max Weber's theory of bureaucracy. Taylor's approach emphasizes the scientific study of work, selecting and training workers, cooperation, and dividing responsibilities, while Fayol outlines six industrial activities, five functions of management, and 14 principles of management to improve organizational efficiency. Weber's contribution focuses on bureaucracy, highlighting principles like specialization, formalized rules, a hierarchical structure, and impartiality in management.