A library science degree is a graduate-level program that prepares you to organize, manage, and provide access to information in libraries, archives, digital platforms, and corporate settings. The standard credential is a Master of Library Science (MLS) or Master of Library and Information Science (MLIS), typically completed in one to two years. While the name suggests a narrow focus on books and buildings, the degree covers a much broader range of skills, from database design to digital preservation to user experience research.
What You Study in the Program
Library science programs start with a core curriculum that covers the fundamentals every information professional needs: how to classify and catalog materials, how to manage collections, how people search for and use information, and the ethics of providing equitable access to knowledge. You’ll also study reference services (helping people find what they need), research methods, and the management side of running an information organization, including budgeting, staffing, and strategic planning.
Beyond the core, many programs offer specialized tracks. Common concentrations include school librarianship (K through 12), health science librarianship, archival studies, digital preservation, art librarianship, and database design. If you’re interested in working in a school library, you’ll want a program with a specialty in school librarianship that holds national recognition from the American Library Association (ALA) and the American Association of School Librarians, housed within an education unit accredited by the Council for the Accreditation of Educator Preparation. That combination satisfies the certification requirements most school districts expect.
Why ALA Accreditation Matters
The American Library Association accredits graduate programs in library and information studies, and that accreditation carries real weight in hiring. If you want a position that requires a master’s in library science, holding a degree from an ALA-accredited program is, as the ALA itself puts it, “perhaps the most important factor.” Many public library systems, academic libraries, and government agencies list an ALA-accredited degree as a minimum qualification. Programs without that accreditation may still teach useful skills, but the credential won’t open the same doors.
There are roughly 60 ALA-accredited programs across the United States and Canada, offered at both large research universities and smaller institutions. A growing number are available fully online, which makes the degree accessible if you’re working or living far from a campus.
Admission Requirements
You don’t need an undergraduate degree in any particular field. Programs accept applicants from English, history, computer science, education, and virtually every other discipline. The typical requirements are a four-year bachelor’s degree, an application essay, and letters of recommendation. Some programs also require a minimum score on the Graduate Record Exam (GRE), though many have dropped that requirement in recent years. Prior library experience can strengthen your application but is rarely mandatory.
Career Paths Beyond the Public Library
The most visible career path is working as a librarian in a public, academic, or school library. But the degree qualifies you for a surprisingly wide range of roles outside traditional library settings. Graduates increasingly work for private corporations, nonprofit organizations, consulting firms, and technology companies.
Some of the specific roles library science graduates fill:
- Knowledge management specialist: Captures institutional knowledge, especially expertise that exists only in employees’ heads, and organizes it so the rest of the organization can find and use it.
- Information architect: Designs the structure and navigation of websites, intranets, and online communities so users can find what they need intuitively.
- Usability engineer: Tests and improves how people interact with digital products and interfaces.
- Information broker: Conducts specialized research for clients, often focusing on market research, patent searches, or competitive analysis.
- Taxonomist or ontologist: Builds classification systems that help organizations categorize and retrieve large volumes of data or content.
- Database administrator or systems analyst: Manages the technical infrastructure that stores and delivers information.
Some graduates also work on the vendor side, employed by publishers, technology companies, and consultants that provide products and services to libraries. These roles blend subject expertise with sales, product development, or customer support.
Salary and Job Outlook
The median annual wage for librarians and library media specialists was $64,320 in May 2024, according to the Bureau of Labor Statistics. The lowest 10 percent earned less than $38,920, while the highest 10 percent earned more than $100,880. Where you work affects your pay significantly. Librarians in elementary and secondary schools earned a median of $69,880, while those in local government settings outside of education earned $60,510.
Employment is projected to grow 2 percent from 2024 to 2034, which is slower than average. That modest growth rate can be misleading, though. About 13,500 openings for librarians and library media specialists are projected each year over the decade, driven largely by retirements and turnover rather than new positions being created. Salaries for non-traditional roles in the private sector, like information architecture or knowledge management, can run higher than these figures, but the BLS doesn’t track them under the librarian category.
Is the Degree Worth It?
The value depends on what you plan to do with it. If your goal is a professional librarian position in a public or academic library, the degree is essentially required, and ALA accreditation is non-negotiable. The investment pays off in stable employment with benefits, though salaries in many library roles are modest relative to other master’s-level professions.
If you’re drawn to the information management and technology side of the field, the degree opens doors into corporate roles that often pay more but may also be achievable through other paths, like a degree in information systems or computer science. The library science degree’s advantage in those settings is its emphasis on how people actually search for, organize, and use information, a perspective that purely technical programs often skip.
Program costs vary widely. Public university programs with in-state tuition can run under $20,000 total, while private institutions may charge two or three times that. Online programs sometimes offer a lower price point and let you keep working while you study, which reduces the opportunity cost. Before enrolling, confirm the program is ALA-accredited and check whether it offers the specialization that matches your career goals.