This report provides a comprehensive analysis of Human Resource Management (HRM) functions within an organization, focusing on workforce planning, recruitment, and employee relations, with Marks and Spencer as a case study. It examines the purpose and functions of HRM, including recruitment, training, and performance evaluation, highlighting the strengths and weaknesses of internal and external recruitment approaches. The report evaluates the benefits of HRM practices for both employers and employees, emphasizing organizational profit and productivity. Additionally, it analyzes the importance of employee relations and employment legislation in HRM decision-making, illustrating the application of HRM practices in a work-related context. The analysis concludes by critically evaluating employee relations and HRM practices that inform and influence decision-making within an organizational context, supported by specific examples.