This report provides a comprehensive overview of hospitality marketing essentials, using Marriott as a case study. It begins with an introduction to marketing and its various procedures, including strategic marketing analysis, marketing implementation, and marketing control. The report then delves into the specific roles and responsibilities of the marketing function within Marriott, such as market research, identifying target customers, and managing social media. It analyzes the interconnectedness of the marketing department with other functional units, including finance, human resources, and food production, highlighting the importance of collaboration. The report further explores the value of marketing in the hospitality industry, emphasizing its role in attracting and retaining customers. The 7 Ps of marketing (Product, Price, Place, Promotion, Process, People, and Physical Evidence) are then examined in the context of Marriott's strategies. The report concludes with an analysis of the significance of effective interrelationships between different functional departments, followed by a list of references.