BLS data shows librarians and archivists earn similar national median salaries, separated by only a few thousand dollars annually.
An MLIS with an archival concentration can qualify you for most archivist positions, though a standalone MAS offers deeper specialization.
Dual MLIS and MAS programs let students earn both credentials in roughly three years, covering librarian and archivist career paths.
BLS projections through 2034 show archivists, curators, and museum workers growing slightly faster than librarians in percentage terms.
Most U.S. and Canadian librarian positions require an ALA-accredited masters in library science, but archivist hiring is fragmented across MLIS holders, MAS graduates, and historians with archival certificates. That credentialing split is the source of genuine confusion for students entering the field in 2026.
A recurring thread in r/librarians, "Archivist vs Librarian: MAS vs MLIS?", captures the exact dilemma: two adjacent professions, overlapping coursework, and no single answer about which degree employers prefer for archival roles.1 The tension is real because curriculum overlap can run 40 percent or higher, yet job postings often specify one credential by name.
Tuition, program length, and specialization depth all shift depending on the choice, and the salary spread between librarians and archivists at the national level remains narrow enough that the decision rests more on work setting than pay.
What Is an MLIS Degree?
The Master of Library and Information Science is the standard professional credential for librarians in the United States and Canada, and holding one from an accredited program is a baseline requirement for most library positions.
Accreditation and Program Structure
Almost all credible MLIS programs carry accreditation from the American Library Association (ALA), which signals to employers that the degree meets established professional standards. Programs typically run between 36 and 48 credit hours, which translates to roughly one and a half to two years of full-time study. Many programs offer fully online formats, part-time schedules, or hybrid options, making the degree accessible to working professionals.
What You Study
The MLIS curriculum is deliberately broad, preparing graduates to work across a wide range of library and information environments. Core coursework commonly covers:
Information organization: Cataloging, metadata, and classification systems that make collections findable.
Reference services: Research consultation skills and instruction for helping patrons locate and evaluate information.
Collection development: Selecting, acquiring, and managing library materials in both print and digital formats.
Digital librarianship: Managing electronic resources, institutional repositories, and emerging technologies.
User services: Designing programs and services around the needs of specific communities.
Management and administration: Budgeting, staffing, and organizational leadership within library settings.
Graduates move into a wide range of roles depending on their interests and the type of institution they target. Common positions include public librarian, academic librarian, school librarian degree online track, information specialist in corporate or legal settings, and digital services librarian. Each of these paths draws on a different combination of the skills built during the degree.
Concentrations Matter
One of the most important structural features of the MLIS is its flexibility through concentrations. Students can often specialize in areas such as youth services, health sciences librarianship, data management, or archival studies. That last option, an archival concentration within an MLIS program, is a critical comparison point when weighing this degree against a dedicated archival studies degree. The distinction shapes not just what you learn, but which career doors open most readily after graduation.
What Is an MAS Degree?
While the MLIS prepares graduates for the broad world of library and information services, the Master of Archival Studies (MAS) zeroes in on the specialized discipline of preserving, organizing, and providing access to primary source materials. The MAS is a distinct graduate degree grounded in archival theory, methodology, and practice, and it draws on a different intellectual tradition than the MLIS.
What the MAS Covers
MAS curricula are built around the principles that govern how records and historical materials are managed across their lifecycle. Core coursework typically includes:
Archival appraisal: Determining which records have lasting value and should be permanently preserved.
Arrangement and description: Organizing collections according to provenance and original order, then creating finding aids so researchers can locate materials.
Records management: Overseeing active records from creation through disposition, often in organizational or government settings.
Digital preservation: Ensuring born-digital and digitized materials remain accessible over decades.
Provenance theory: Understanding the contextual origins of records, a foundational concept that distinguishes archival science from library cataloging.
Access policy: Balancing public access with privacy, copyright, and security restrictions.
The University of British Columbia, one of the most recognized programs in North America, offers a thesis-based or course-based MAS that typically takes about 28 months to complete, with an average completion time of roughly 2.2 years.12 Programs at other institutions may carry alternate names such as MA in Archival Studies or MS in Archival Science, but the archival-science focus is the common thread that sets them apart from general library degrees.
Where MAS Graduates Work
The MAS opens doors to a set of employers that differ meaningfully from those hiring careers in library science graduates. Typical workplaces include:
Government archives: The National Archives and Records Administration (NARA), state and provincial archives, and municipal records offices.
University special collections: Rare book rooms, manuscript libraries, and institutional archives housed within academic libraries.
Museums and historical societies: Institutions that steward cultural heritage mlis online materials and make them available for research and exhibition.
Corporate records management: Private-sector organizations that need systematic approaches to regulatory compliance, retention schedules, and information governance.
A Less Common but Highly Focused Degree
MAS programs are considerably less common than MLIS programs. Fewer schools offer a standalone archival studies degree, which means prospective students may need to look beyond their home state or province, or consider online options. That relative scarcity, however, reflects the degree's depth rather than its value. Students who want to explore the full range of archivist career requirements will find that employers seeking archival expertise often prefer candidates whose entire graduate training centered on the management of primary sources, rather than graduates who took only one or two electives in the area. For students who already know they want to work with historical records, rare materials, or government documentation, the MAS provides a direct and well-defined path into the profession.
MLIS vs MAS: Key Curriculum Differences
At its core, the difference between an MLIS and an MAS comes down to what each program trains you to do: the MLIS prepares graduates to connect people with information across a wide range of library and information environments, while the MAS focuses specifically on acquiring, preserving, and providing access to historical records and primary sources. Both are graduate-level degrees, but their coursework, practicum requirements, and professional orientations point in noticeably different directions.
What MLIS Coursework Typically Covers
An MLIS curriculum is designed to be broad by intention. Students generally move through foundational courses covering information organization, reference services, library management, collection development, and emerging technologies. Many programs allow significant elective flexibility, which is how archival studies, digital humanities, school librarianship, and data management often fit in. That breadth is a feature, not a flaw: librarians work in public, academic, corporate, medical, and government settings, and the curriculum tries to reflect that range. For guidance on navigating those options, our overview of how to choose a library science program walks through the key factors step by step.
Because programs vary considerably, the best way to understand what a specific school emphasizes is to read its published course catalog and speak with a faculty advisor. Program websites are the most reliable source for current requirements, and accreditation status from the American Library Association (ALA) is worth confirming before you enroll. It also helps to understand the difference between MLS and MLIS designations, since the naming conventions vary by institution even when curricula overlap significantly.
What MAS Coursework Typically Covers
An MAS curriculum tends to be more tightly focused. Courses typically cover archival theory, records appraisal, arrangement and description, preservation methods, and the management of special collections. Many programs also include coursework in digital preservation and metadata standards, reflecting how rapidly archival practice has evolved alongside technology. Field placements with archives, special collections, or historical societies are common requirements and give students hands-on experience with real collections.
Professional standards for archival education are shaped significantly by the Society of American Archivists (SAA), which publishes guidelines on graduate archival education. Checking whether a program aligns with those guidelines is a practical step for anyone seriously considering the MAS path.
How to Compare Programs on Your Own
Rather than relying on any single ranking or summary, prospective students are better served by consulting a few authoritative sources directly:
Program websites: Course lists, concentration options, and practicum requirements are usually published in full.
BLS.gov: The Bureau of Labor Statistics publishes occupational profiles for librarians and archivists, including typical duties and education requirements, which help clarify what each role actually demands.
Professional associations: ALA and SAA both maintain resources that describe competencies expected of new professionals in each field.
Cross-referencing these sources gives a clearer picture than any single comparison can, because program structures shift over time and individual career goals vary widely.
Ask Yourself: Librarian or Archivist?
Librarian vs Archivist: Day-to-Day Roles and Work Environments
What does a typical workday actually look like for a librarian compared to an archivist? The job titles sound related, and they share a common goal of organizing information for public use, but the daily rhythm, the people you interact with, and the materials you handle differ in concrete ways.
Daily Duties: Public Service vs Custodianship
Librarians spend much of their day in motion. A reference librarian might field research questions at a service desk, lead a story hour for children, teach a database workshop to undergraduates, weed an outdated section of the collection, and place orders for new acquisitions, all before lunch. Cataloging, collection development, instruction, and community outreach are core responsibilities, and patrons drive the pace.
Archivists work on a longer clock. A typical week might include accessioning a new donation (logging it, assigning it an identifier, and noting its condition), appraising materials to decide what has lasting value, arranging documents into a logical order, describing them in a finding aid, and assessing preservation risks like acidic paper or failing magnetic tape. The work is detail-heavy and project-based, often measured in months rather than hours.
Where the Work Happens
Librarians are found in online master's in public librarianship branches, K-12 schools, college and university libraries, hospitals, law firms, and corporate research departments. Foot traffic and programming budgets shape the environment.
Archivists more often work in university special collections, state and federal government agencies, museums, historical societies, religious institutions, and corporate records departments. The setting tends to be quieter, with controlled temperature and humidity, and access is mediated rather than open.
Technology: Shared Tools, Different Standards
Both professions have gone digital, but in different directions. Librarians work with integrated library systems (ILS), discovery layers, electronic resource platforms, and patron-facing technology like self-checkout and learning management integrations. Archivists work with digital preservation frameworks such as OAIS, descriptive standards like EAD and Dublin Core, and tools for managing born-digital records and web archives.
The Interpersonal Dimension
Librarianship is a public-facing profession. Comfort with strangers, patience with repetitive questions, and a service orientation matter. For prospective students weighing the two paths, MLIS alumni career paths illustrate how these interpersonal skills translate into a wide range of roles. Archival work is more independent. Archivists do consult with researchers and negotiate with donors, but stretches of solo work with the materials themselves are normal and expected.
According to the Bureau of Labor Statistics, archivists and librarians earn similar national median salaries, with the gap between the two professions amounting to just a few thousand dollars per year. In practice, where you work tends to matter far more than which degree you hold, as salaries in high-cost states can exceed national medians by a wide margin.
Job Outlook and Demand for Librarians vs Archivists
Both librarian and archivist career paths show steady demand through 2034, though the fields differ significantly in scale. According to BLS projections, the broader archivists, curators, and museum workers category is expected to grow slightly faster than librarians, driven largely by digital preservation initiatives and government records modernization. However, the librarian field generates far more annual openings, roughly 13,500 per year compared to about 5,300 for the archivists, curators, and museum workers group, reflecting its larger overall workforce.
Can You Be an Archivist With an MLIS?
Yes, many practicing archivists hold an MLIS degree, particularly one with an archival concentration, and the credential is widely accepted across most archival sectors. The path from MLIS to archivist is well-established, though employer preferences and credentialing expectations vary by institution type and specialization.
Employer Preferences by Sector
Government archives, including the National Archives and Records Administration (NARA) and state agencies, typically accept an MLIS with archival coursework alongside degrees in history, public history, or archival studies.1 Job postings for government archivist positions frequently list a master's in library or information science with archival emphasis as qualifying preparation. Academic special collections and university archives show a stronger preference for candidates with either an MAS or an MLIS specifically concentrated in archival studies, reflecting the specialized nature of manuscript curation and donor relations in higher education settings.2 Museum archivists encounter the widest range of credential expectations: some museums prefer an MLIS with archives concentration, others favor a master's in museum studies or history with archival training, and institutional culture often determines which background carries more weight.3
Supplementing an MLIS for Archival Work
Two professional credentials strengthen an MLIS holder's candidacy for archival positions. The Society of American Archivists offers the Digital Archives Specialist (DAS) Certificate, a continuing education credential built around courses and assessments grouped into Foundational, Tactical and Strategic, Tools and Services, and Transformational tiers.4 Candidates must complete required courses and pass assessments within five years, and the credential has become particularly valued for digital archivist roles. The Academy of Certified Archivists (ACA) offers formal certification to archivists holding any master's degree plus at least nine semester hours of graduate-level archival coursework.1 ACA Provisional Certification is available to those who meet the educational threshold but lack the professional experience required for full certification. Neither credential requires an MAS specifically, and both recognize MLIS graduates with appropriate archival training as eligible.
Switching From Librarian to Archivist Mid-Career
Librarians holding an MLIS can transition into archival roles without returning to school for a second master's degree. For a detailed look at the qualifications and steps involved, see our guide on how to become an archivist. The pathway typically requires targeted continuing education (workshops through SAA, individual archival methods courses, or the DAS Certificate), relevant volunteer or project experience in archives or special collections, and a clear narrative connecting library skills like metadata, digital preservation, and information organization to archival competencies. Many archivists working in academic libraries began as reference or catalog librarians and moved laterally into special collections after demonstrating interest and building archival knowledge through professional development.
MLIS With Archival Concentration vs MAS: Which Is Better for Archival Careers?
Students drawn to archival work often face a pivotal choice: earn a standalone MAS or pursue an MLIS with an archival concentration. Both can lead to archivist roles, but each path involves trade-offs in specialization depth, flexibility, and availability. The comparison below highlights the key differences to help you weigh your options.
Dual MLIS/MAS Programs and Combined Pathways
A dual MLIS/MAS program awards both a Master of Library and Information Science and a Master of Archival Science (or Master of Archival Studies) upon completion, equipping graduates with the full credential set for both librarian and archivist roles. These programs are designed for students who want to work across both fields or who prefer not to choose between the two early in their education. Because the degrees share foundational coursework in information organization, metadata, and professional ethics, dual programs typically require fewer total credits than completing each degree separately, often adding just one to two extra semesters beyond a standalone MLIS. For a broader look at pairing options, see our guide to dual MLIS degree combinations.
Programs That Offer Dual or Combined Archival-Library Degrees
Several universities now offer formal dual-degree pathways. At Loyola University Chicago and Dominican University, students can pursue a dual degree pairing Dominican's ALA-accredited Master of Library and Information Science with Loyola's MA in Public History.1 The program is available online, in person, or in a hybrid format, making it accessible to working professionals. St. John's University in New York offers a similar dual degree, awarding both an MA in Public History and an MS in Library and Information Science for a total of 57 credits.2 St. John's delivers the program in mixed mode, with LIS courses fully online and public history coursework primarily on campus.
The University of Southern Mississippi pairs its fully online, ALA-accredited MLIS with an MA in History. The combined program requires 61 credits, and because the MLIS component is 100 percent online, students outside Mississippi can complete the library science portion remotely while handling history requirements through a blend of on-campus and hybrid coursework.3 Indiana University Bloomington offers a Master of Library Science with an archival studies emphasis as an on-campus program requiring 36 credits.4 While not a formal dual degree, this pathway integrates archival coursework and practicum experiences directly into the MLS curriculum.
New York University's Graduate School of Arts and Science has partnered with LIU Palmer to offer a dual degree in which students earn an MA in any GSAS discipline alongside an MS in Library and Information Science from LIU.5 This structure is primarily on campus in New York City, though some LIS coursework is available online. Students interested in archives can pair their LIS degree with an MA in history, public history, or even museum studies.
MLIS/MA Public History vs. MLIS/MAS: What's the Difference?
Dual programs that combine an MLIS with an MA in history or public history serve archival career goals but differ from MLIS/MAS pairings in emphasis and scope. An MA in public history typically includes oral history, museum studies, historic preservation, and community engagement, training students to interpret and present historical materials to public audiences. This is an excellent fit for archivists working in historical societies, local government archives, or museum collections, where public programming and exhibit work are part of the role.
An MAS, by contrast, focuses narrowly on archival theory, appraisal, arrangement and description, digital preservation, and records management. It trains students for positions in institutional archives, corporate records management, and digital preservation units where the core work is accessioning, processing, and providing reference service for archival collections. For students certain they want to work exclusively as archivists, the masters in archival science is the more direct path. For those who want flexibility to move between library, archive, and public history roles, pairing an MLIS with a public history MA offers broader career optionality.
Cost, Time, and Job Market Value
Dual-degree programs typically add 12 to 18 credits beyond a single master's, translating to one or two additional semesters and corresponding tuition. At Southern Mississippi, the dual MLIS/MA History program requires 61 credits versus 36 for the MLIS alone.3 At St. John's, the dual degree totals 57 credits.2 Students should budget an extra $8,000 to $15,000 in tuition depending on the institution's per-credit rate, plus additional time away from full-time work if pursuing the degree on campus.
Whether dual credentials meaningfully improve job prospects depends on the type of position. For hybrid roles in special collections, academic archives, and digital scholarship centers, holding both degrees signals versatility and may give a candidate an edge when the position requires both reference service and archival processing. For straightforward librarian or archivist openings, a single degree with a strong concentration or certificate often suffices. Employers hiring for reference librarian roles rarely require archival training, and many archivist postings specify an MAS or MLIS with archival coursework but do not demand both. The dual pathway is most valuable when a student genuinely plans to work in both areas or when targeting competitive positions that blend library and archival responsibilities.
Program-level employment and earnings data for dual-degree completers are not yet published separately from single-degree cohorts, so prospective students should weigh the additional investment against their specific career goals and the types of openings available in their region or area of interest.
