This document provides an introduction to the concepts of youth marketing. It discusses how marketing to youth is a marathon, not a sprint. It explores some timeless marketing truths, including that people buy social context rather than just products. Youth are motivated by emotions and the desire for belonging and significance. Marketing should focus on how a product enables social benefits rather than just touting product features. Examples are given of how cigarettes and mobile phones both fulfill social needs despite very different products. The document emphasizes understanding the difference between product content and social context in effective youth marketing.