This report provides a comprehensive analysis of leadership and management within the service industry, with a specific focus on the Hilton International organization. The report begins by assessing classical management theories, such as bureaucratic, scientific, and behavioral theories, and evaluates their application within the service sector. It then explores the roles of leaders and various leadership styles, including autocratic, democratic, and laissez-faire approaches, along with their advantages and disadvantages. The investigation extends to internal and external factors influencing management styles and organizational structure, highlighting aspects like skilled employees, corporate culture, innovation, technology, and market competition. The report also assesses both hard and soft leadership skills, exemplified through practical scenarios, and concludes with a discussion of the future management and leadership skills needed in the service sector. The report also compares different service industry organization change management systems and leadership implement change.