This report provides a comprehensive overview of marketing essentials, focusing on the key roles and responsibilities within the marketing function. It delves into the marketing concept, exploring various aspects such as production, product, selling, marketing, and societal concepts. The report analyzes Apple, examining its marketing strategies, including information system management, distribution, pricing, selling, promotion, and financing. It also investigates how marketing functions relate to the wider organizational context, highlighting the interconnections with operations, finance, sales, IT, and R&D departments. Furthermore, the report compares the marketing mixes of Apple and Samsung, providing insights into their product, price, place, and promotion strategies. Finally, it culminates in the creation of a business marketing plan, outlining essential steps and strategies to achieve marketing objectives.