This report provides a comprehensive overview of marketing, encompassing its core functions, fundamental concepts, and the overall marketing process. It delves into various marketing concepts, including production, product, selling, marketing, and societal marketing concepts, offering insights into how companies like Cadbury can develop and implement effective strategies. The report also explores the roles and responsibilities of a marketing manager and examines the influences and interrelations of marketing within an organization. Furthermore, it highlights the importance of marketing for businesses and its impact on profitability, concluding with recommendations for Cadbury to enhance its sales and achieve competitive advantages through improved marketing strategies. The report references key academic sources to support its findings.