This report explores the role of culture in organisational behaviour and its impact on employee motivation. It analyzes the culture of Marks and Spencer using theoretical models and discusses how culture improves organisational effectiveness. It also assesses the role of culture in employee motivation and suggests ways in which the company can further enhance its success through its culture. The report highlights the importance of communication, content theory of motivation, and process theory of motivation in shaping the culture and motivating employees. Overall, it emphasizes the significance of a positive and healthy work culture in achieving organisational goals.