This report discusses the fundamentals of marketing, including context analysis, PESTLE table, marketing mix, STP analysis, and campaign measurement. It focuses on Leon, a fast food chain industry in the UK, and its new product, Vegan Spaghetti Sandwich. The report covers the market size of the fast food industry in the UK, Leon's PESTLE analysis, and its marketing mix strategy. It also discusses segmentation, targeting, and positioning, as well as the benefits of Leon's new product. Finally, the report analyzes campaign measurement and its importance in tracking the performance of marketing campaigns.