This report discusses the roles of human resources, finance, and marketing within a company in the field of business studies. It explores the recruitment, training and development, and employee relationships in the human resources department. It also covers the promotion and brand management, market research, and meeting consumer needs in the marketing department. Additionally, it delves into the capital management, financial planning, and financial decision and control in the finance department. The report also highlights the importance of collaborative working practices and the knowledge of financial management and reporting within a company. The case study of Sainsbury, a UK-based supermarket chain, is used as an example throughout the report.