The lean start-up movement offers a process and an approach to managing product development built upon a nimble learning organization that responds to metrics through iterative development. Using techniques and philosophies pioneered by Toyota s lean manufacturing success, Becoming a Lean Library provides library leadership advice and tips on making the library more nimble, lean, and responsive to technological change. The first chapter introduces the reader to the idea of lean start-ups in libraries, followed by chapters covering library systems, lessons from lean manufacturing and the build-measure-learn model. Remaining chapters discuss technology change and DevOps as a lean strategy, while also giving the reader the opportunity to earn a professional, online "badge" on the subject material of the book.