Most professional librarians, even recent graduates, manage something, whether it be a project, service, department, or a whole library. This book explains the different managerial roles at libraries, looking at the levels of managers, what they do, and how they do it. The goal is to explore the unique challenges faced by different types of library managers, in order to prepare early and mid-career librarians to step into new roles, and to think about how they might progress toward upper-management in a library.