This report analyzes the critical role of marketing in business, using EasyJet, a multinational airline company, as a case study. The report begins with an introduction to marketing, emphasizing its significance in product promotion, customer communication, brand building, and market exploration. A SWOT analysis of EasyJet is presented, highlighting the company's strengths (market presence, low-cost model), weaknesses (tax sensitivity, limited market share), opportunities (improved operating framework, travel packages), and threats (policy changes, competition). The marketing objectives of EasyJet, focusing on low-cost services and operational efficiency, are outlined. The strategic approach using the marketing mix (product, price, place, promotion, people, process, physical evidence) is detailed. The report also discusses the implementation process, including defining goals, conducting research, mapping risks, assigning tasks, and allocating resources. Justification for marketing research methods (surveys, focus groups, social media listening) is provided, along with an explanation of how key performance indicators (KPIs) measure the effectiveness of the marketing plan. The report concludes by emphasizing the importance of marketing tools in analyzing markets, satisfying customer needs, gaining a competitive advantage, and driving economic growth. References to relevant academic sources are included.