This document discusses patron-driven acquisition (PDA) in libraries, providing an overview of the topic and addressing related questions and considerations. It begins by defining PDA and explaining why libraries implement PDA programs. It then covers different PDA models for print and electronic resources, as well as budgeting, best practices for starting a PDA program, analyzing usage data, and controversies regarding PDA's effects on collections. The document aims to help libraries successfully plan and implement a PDA program while navigating related challenges.