This document provides an overview of Module 1 on the introduction to human resource management. It defines HRM and discusses its importance, historical development, major theories like McGregor's Theory X and Y, and applications in business. It also outlines the managerial functions of HRM like planning, organizing, directing, and controlling. Key concepts covered include the evolution of HRM from treating labor as a commodity to recognizing employees as valuable assets. Theories that shaped HRM such as Hawthorne studies, Maslow's hierarchy of needs, and scientific management are summarized as well.