This report provides a detailed analysis of marketing essentials, using Apple Inc. as a case study. It begins with an introduction to marketing and its core functions, emphasizing the importance of strategic and tactical approaches. The report examines the roles and responsibilities of the marketing function within an organization, including marketing information management, distribution, product and service management, pricing, promotion, selling, and financing. It also explores the relationship of marketing with other organizational units such as production, finance, human resource management, research and development, customer service, administration, information and communication technology, and sales. The report further analyzes the impact of the marketing environment, including competition, the economy, technological developments, and political factors, on marketing strategies. It highlights the significance of interrelationships among various functional units for achieving overall business success. The report then delves into the ways in which firms utilize elements of the marketing mix to obtain business success, comparing Apple Inc. with Sony. It culminates in a basic marketing plan specifically tailored for Apple Inc., considering the 7 Ps of the marketing mix, to provide a coherent, evidence-based strategy.