This report delves into the core concepts of organizational behaviour, specifically focusing on the distinct roles of leaders and managers within a business context. It explores the influence of these roles on employee behaviour, performance, and organizational structure. The report uses the example of Jeff Bezos and Amazon to illustrate leadership styles and the impact of both internal and external operational environments on organizational success. It highlights the importance of operational efficiency and effective management strategies in achieving stable market growth and competitive advantages. The analysis includes a review of Bezos's biography, career highlights, and the key operations of Amazon, evaluating how corporate objectives, human resources, and competitors influence leadership decisions and operational outcomes. The conclusion emphasizes the significance of effective leadership and management in driving organizational growth and adapting to operational challenges, using Bezos as a case study.