This report provides a comprehensive analysis of marketing essentials, focusing on the strategies of Coca-Cola and Pepsi. It begins with an introduction to the marketing mix, including the traditional 4Ps (product, price, place, promotion) and the expanded 7Ps (including people, process, and physical evidence). The report then compares the marketing approaches of Coca-Cola and Pepsi across these elements. A significant portion of the report is dedicated to a detailed marketing plan for Coca-Cola's new product, Diet Coke, covering company overview, strategic objectives, market research (SWOT analysis), target market segmentation, and marketing budget. The marketing budget includes details for initial investment, promotion, and sales projections over a five-year period. Finally, the report discusses monitoring and controlling marketing activities to ensure the plan's success and concludes by emphasizing the importance of the marketing plan as a roadmap for new product launches and the effective utilization of the marketing mix to meet consumer needs.