This chapter introduces human resource management (HRM) as the policies and practices involved in carrying out human resource aspects of management, including recruiting, screening, training, rewarding, and appraising employees. It discusses the responsibilities of line managers who directly supervise employees and staff managers who assist them. An effective HRM system uses high-performance work practices like extensive training, team structures, and contingent rewards to improve employee behaviors and business outcomes. Metrics and measurement are crucial for HRM to demonstrate its value and contribution through an HR scorecard. The chapter outlines certifications and proficiencies needed for modern HR managers.