This research aims to identify the impact of reward system used within retail organisation in UK on employees' performance, with a focus on Marks and Spencer. It includes a literature review on different types of reward systems, challenges faced by M&S in implementing effective reward system, and the impact of reward system on employee's performance. The research questions include the meaning of reward system, different types of reward system used in M&S, challenges faced by M&S in implementing effective reward system, and the impact of reward system on employee's performance. The subject is research methodologies, and the course code, course name, and college/university are not mentioned.