This document discusses planning and implementing demand-driven acquisitions (DDA) models in academic libraries. DDA aims to broaden library collections by providing access to more titles through short-term loans or purchases based on patron demand and use. The document outlines key considerations for DDA projects such as defining goals, establishing a consideration pool of titles, integrating with vendors, evaluating the program, and ongoing management of the pool. It also discusses the roles of libraries, vendors, and aggregators in collaboratively supporting DDA to maximize access to ebooks and minimize costs and duplication.