The document provides an introduction to human resource management (HRM). It defines HRM and distinguishes it from personnel management. Key differences include that HRM is more modern, encompasses more functions like planning, recruiting, training, and performance evaluation, and takes a more strategic approach compared to the administrative focus of personnel management. The document also outlines the evolution of HRM from early systems like the guild system to more modern approaches incorporating scientific management and industrial psychology. It discusses the objectives and roles of HRM professionals and departments in organizations. Finally, it introduces some challenges facing HRM like diversity, technology changes, and government regulations.