This report provides an in-depth analysis of organisational behaviour, focusing on how culture, politics, and power influence individual and team dynamics within an organisation, using Mark and Spencer as a case study. It examines the impact of power dynamics, including legitimate, reward, referent, and expert power, and the influence of organisational culture, such as power, task, person, and role cultures. The report further explores the effects of politics within an organisation, including the concepts of rocks, weeds, and woods. Furthermore, it evaluates content and process theories of motivation, such as Maslow's Hierarchy of Needs and Herzberg's two-factor theory, and how motivational techniques enable effective goal achievement. It also explains the characteristics of effective and ineffective teams and analyses team development theories to support cooperation, providing recommendations to improve business performance and productivity. The report concludes with an evaluation of the relationship between culture, politics, power, and motivation, offering justified recommendations for organisational success.