This report on Marketing Essentials covers the key roles and responsibilities of marketing function, inter-relationship with other departments, marketing mix comparison of Cadbury and Nestle, and basic marketing plan for Cadbury. It explains how marketing helps to increase productivity, build customer relationships, and promote the mission and business of an organization. The report also compares the marketing mix of Cadbury and Nestle in terms of product, price, promotion, place, people, process, and physical evidence. Finally, it provides a basic marketing plan for Cadbury.