This document discusses how to build an effective content library for marketing. It recommends that marketers 1) create content tailored to buyers' needs by understanding their pain points and questions, 2) organize content by persona, funnel stage, topic and type to make it easy for buyers and sales to find, and 3) use a content library to empower the sales team and improve the sales process, such as allowing salespeople to create personalized content pages for prospects. An example is provided of how one sales representative leveraged content to advance a deal.