This document provides an overview of management principles and organizational behavior theories. It defines management and discusses it as both an art and a science. The document outlines the functions of management including planning, organizing, leading, and controlling. It also discusses different management roles, skills needed by managers, and how the manager's job is changing with a focus on customers and innovation. Various approaches to management like scientific, human relations, and contingency approaches are introduced. The document also summarizes organizational behavior theories like Theory X and Theory Y that describe how employees may behave in organizations.