This report provides an in-depth analysis of organisational behaviour, focusing on the influence of culture, politics, and power on individual and team performance within an organisation. The report uses KPMG as a case study and examines how organisational culture, including task, person, and role cultures, affects employees. It explores the impact of globalisation and digital technology on organisational culture, along with the application of Hofstede's Cultural Dimension Theory. The report delves into the effects of both positive and negative organisational politics, including personal, structural, decisional, and organisational changes. It also assesses the influence of power dynamics, such as reward, coercive, legitimate, expert, and referent power, on employee behaviour. Furthermore, the report defines content and process theories of motivation, including Maslow's hierarchy of needs, and discusses the characteristics of effective and ineffective teams. Finally, the report analyses how team development theories are relevant to the philosophies of organisational behaviour that affect workplace behaviour.