Human resource management involves attracting, developing, and retaining employees to achieve organizational goals. The key functions of HRM include recruitment and selection, training and development, performance management, and compensation and benefits. As a strategic partner, employee champion, change agent, and administrative expert, HRM works to forecast workforce needs, design jobs, source candidates, enhance skills, evaluate performance, develop compensation, promote relations, and ensure health and safety while managing data systems and addressing challenges like diversity, technology, regulations, retention, leadership, and balancing expectations.