This document provides an introduction to human resource management (HRM). It discusses what HRM is, why it is important for business success, and what it means for HRM to be strategic. It also outlines some of the key functions of HRM like staffing, training, and compensation. Additionally, it examines the challenges that HRM faces from both environmental factors in the external environment like changes in legislation, workforce diversity, and globalization, as well as organizational challenges internally like downsizing and managing a diverse workforce. The responsibility of HRM is discussed as being shared between HR professionals and line managers.