Hattie the PMM takes a first-principles approach to explaining product marketing, stripping away jargon to answer the fundamental question: what does a PMM actually do and why does the role exist? She walks through the core mandate --- understanding the market, knowing the customer, positioning the product, and enabling the go-to-market engine --- and explains how these responsibilities translate into daily work. Hattie also addresses the identity problem that product marketing has struggled with: it means different things at different companies, and even experienced PMMs define the role differently. This session provides clarity by grounding the conversation in outputs rather than abstract descriptions. You'll come away understanding the PMM's unique contribution to the business, how it complements adjacent functions, and what separates strategic product marketing from being a glorified content creator for sales.