This report provides an analysis of organisational behaviour within the context of Marks & Spencer, focusing on the influence of organisational culture, politics, and power on individual and team behaviour and performance. It evaluates content and process theories of motivation, such as Maslow's Hierarchy of Needs and Herzberg's Two-Factor Theory, and examines their impact on achieving organisational goals. The report also discusses the characteristics of effective versus ineffective teams, supported by relevant team development theories. Furthermore, it applies concepts and philosophies of organisational behaviour to a specific business situation, evaluating how these concepts inform and influence behaviour in the workplace to improve business performance and productivity.