Everyone agrees that the profession of librarianship is undergoing vast changes, but what does it mean to say that a librarian is a professional? While librarians have worked long and hard to present themselves as professionals to the public, they have not examined the philosophical premises of their assumed professionalism. This book explores, from a critical and historical perspective, how professionalism-and the politics of professionalism-has been and is currently constituted within the field of librarianship.