This literature review investigates the multifaceted impact of the COVID-19 pandemic on the UK hospitality industry, with a particular focus on Marriott Hotels. The review begins with an introduction establishing the relevance of the research and its reliance on secondary sources. It then delves into four key themes: a deep analysis of COVID-19 and its causes, the economic effects of the virus on UK hospitality, factors contributing to the decline in hotel occupancy rates, and marketing techniques to improve occupancy. The analysis covers the virus's initial outbreak, its spread, and the resulting economic consequences, including travel restrictions and decreased demand. The review highlights the financial strain on the hospitality sector, specifically examining the impact on Marriott Hotels and its declining sales and occupancy rates. Furthermore, it explores the factors behind the drop in occupancy, such as travel restrictions and public panic. Finally, the review suggests marketing strategies, such as partnerships with businesses and enhanced safety measures, to mitigate the negative impacts and improve hotel performance. The review concludes with a summary of the key findings and their implications for the industry's recovery.