This document provides an overview of classical and neo-classical management theories. It discusses key theories such as Scientific Management, Bureaucratic Theory, Administrative Management Theory, Hawthorne Experiments, Maslow's Hierarchy of Needs, McGregor's Theory X and Y, and Herzberg's Two-Factor Theory. For each theory, it describes the main ideas, proponents, strengths and critiques. The document is intended as part of a course on management and administration theories, principles and practices.