The MLIS debate dates at least to 2011's "McMastergate" controversy.
Bryn Geffert's 2025 research suggests large academic libraries increasingly bypass the MLIS.
BLS projects 3% librarian job growth, about 12,600 openings yearly.
In an Oct. 6, 2026, Inside Higher Ed essay, David Banush frames the MLS debate as a struggle over professional jurisdiction in academic libraries. That matters for MLIS students because the degree still appears as a baseline credential in many library postings, even as some large academic libraries test alternative credentials.
ALA accreditation signals a common curriculum across ALA accredited MLIS programs, but it does not settle which roles truly require the degree or the MLIS payback period relative to first-year salaries. Hiring managers apply the credential unevenly: required in some systems, preferred in others, optional for specialists with doctoral degrees or IT backgrounds.
MLS vs. MLIS and a Debate That Never Quite Ends
MLS or MLIS: What's the Difference?
Mostly a naming choice. Schools label the same kind of graduate degree either "Master of Library Science" or "Master of Library and Information Science," and the title often reflects how a program brands its curriculum. ALA accreditation applies to either one. What matters to employers and to you is whether the program is accredited and what its coursework covers, not which letters appear on the diploma.
The 2011 Flashpoint
In April 2011, Jeffrey Trzeciak, then University Librarian at McMaster University in Ontario, gave a keynote at Penn State University Library's Colloquium Series. One slide said his library was unlikely to hire more librarians with the master of library science degree. He planned instead to recruit candidates with doctoral degrees and information technology backgrounds. The backlash became known as "McMastergate," and one rebuttal bore the blunt title "Shut up, Jeff."
Why It Keeps Coming Back
Writing in Inside Higher Ed on Oct. 6, 2026, David Banush describes the M.L.S. argument as one that resurfaces "like a chronic infection that periodically flares up." His framing is useful: the fight is less about a diploma than about professional jurisdiction, identity, and the Evolution of Libraries in academic and research settings. In other words, who controls entry to the field, and what counts as expertise.
For a prospective student, that means the debate is a reason to research how to choose a library science program, not to panic. Check how your target employers hire, especially large academic libraries, and choose a program whose skills match those jobs.
Are Big Academic Libraries Bypassing the MLIS? What the 2026 Research Found
Can you become an academic librarian without an MLIS? At some large libraries, and in some roles, yes. For most librarian positions the degree is still the default. That is the backdrop for Bryn Geffert's 2025 research at the University of Vermont.
What Geffert Found
Geffert reported that 65% of R-1 and R-2 university libraries have policies allowing appointment without an M.L.S. or foreign equivalent. That figure measures institutional policy, not the share of working librarians who lack the degree. The sample size, response rate, and counts behind the 65% were not available in the material we reviewed, so treat it as directional.
He linked the academic librarian hiring trends to shortages in research data, computational methods, GIS, digital scholarship, and systems work. In his Inside Higher Ed summary, he framed Ph.D.s and technical experts as additions, not replacements. He also argued that wider recruitment could help diversity, noting that 87% of the MLIS pipeline is white.
The Rebuttals
The main Inside Higher Ed response accepted the need for STEM, data, GIS, and digital scholarship expertise. Its argument was that the M.L.S. gives a professional foundation that disciplinary training does not, and its worry was systematic displacement of the M.L.S. baseline, not the hiring of Ph.D.s.
A separate ACRLog post, "The M.L.S. Is Not the Problem," called the degree a professional-formation credential and cited ACRL standards treating the MLS/MLIS as the terminal degree for academic librarian appointment. It conceded that library schools may underproduce data and digital skills, but denied that this devalues the degree. It also noted that the alternative fields Geffert points to are themselves highly homogeneous.
Geffert answered that his recommendation is additive and that refusing Ph.D. holders narrows the pool. He defended his use of Census and NSF data and responded to criticism that his sample drew only on deans and university librarians.
The Student Takeaway
Ph.D.s and IT or data backgrounds are competing for specific roles: data services, digital scholarship, scholarly communication, and systems. They are not replacing the MLIS wholesale. If those roles appeal to you, pair the degree with technical skills you can demonstrate.
Do You Need an MLIS? Required, Preferred or Optional by Library Type
Whether you need an MLIS depends on where you want to work, and it helps to separate legal or certification rules from what employers simply prefer. Roles titled "library assistant" or "library technician" generally do not call for the degree, while positions carrying the "librarian" title usually do. Rules vary by state, so confirm yours with your state library agency (for public libraries) or your state education department (for school library media licensure) before you enroll.
Library Type
Is the MLIS Legally Required?
Typical Employer Practice
What to Check Before Enrolling
Public libraries (professional positions)
Some states require an ALA-accredited degree to work as a professional librarian in public libraries, but there is no nationwide legal requirement. Requirements can also differ by role, such as director positions.
Most employers require an ALA-accredited master's degree for most professional-level positions.
Your state's public library certification or employment rules, plus the program's ALA accreditation.
School library media centers (general)
Set by each state's certification requirements, often through teacher-style licensure. No single national rule requires an MLIS.
ALA identifies either an ALA-accredited master's in librarianship or a master's with a school library media specialty from an appropriately accredited educational unit as the appropriate first professional degree.
Your target state's certification rules and whether the program is ALA-accredited or has an ALA/AASL-recognized school library media specialty.
School library media centers (Ohio example)
Ohio requires an appropriate state credential or license. ALA accreditation is not required for licensure.
Specialists are expected to hold the Ohio credential or license; initial licensure is offered through three Ohio universities.
Ohio's current licensure pathway and confirmation that your program meets state requirements.
Academic libraries
Generally an employer standard rather than a legal rule. ALA notes a master's in library science, preferably ALA-accredited, is necessary for most librarian positions.
Most academic librarian positions expect an MLS or MLIS, preferably from an ALA-accredited program.
ALA accreditation, plus admission requirements such as a bachelor's degree, GPA, GRE, recommendations, interviews and credit hours.
Special libraries
Generally an employer standard rather than a legal rule; ALA describes the master's as necessary for most librarian positions.
Most special library librarian positions expect an MLS or MLIS, preferably from an ALA-accredited program.
ALA accreditation and how admission and credit-hour requirements differ across programs.
Special collections libraries
The MLS is the minimum for professional roles in most cases, though relevant or equivalent experience can sometimes demonstrate the required competencies.
Most special collections job postings require an MLS or MLIS from an ALA-accredited program.
Current job postings, ALA accreditation, and whether an advanced subject degree or related experience would strengthen your candidacy.
Pay is a central part of any MLIS return-on-investment calculation, so the national median is a useful starting benchmark.
Library Pay by Metro Area and the Job Outlook
The Bureau of Labor Statistics projects 3% employment growth for librarians and library media specialists from 2025 to 2035, a gain of about 3,600 jobs on a base of 142,300, with roughly 12,600 openings per year driven largely by retirements and turnover. Slow growth means many graduates will compete for existing positions rather than new ones, and where you work can matter more to your payback timeline than almost any other factor. The table below lists the largest metro employers of librarians in 2025 OEWS data: San Francisco, Los Angeles and Washington post the highest medians, New York employs by far the most, and the gap between San Francisco ($101,490) and Chicago ($66,250) is about $35,000 a year, which can shorten or stretch the time it takes to recover MLIS tuition by years.
Metro Area
Employment
Median Annual Wage
25th Percentile
75th Percentile
Mean Annual Wage
New York-Newark-Jersey City, NY-NJ
10,690
$81,670
$69,770
$103,520
$89,870
Chicago-Naperville-Elgin, IL-IN
3,740
$66,250
$59,420
$92,560
$75,090
Boston-Cambridge-Newton, MA-NH
3,660
$79,450
$64,010
$98,990
$81,970
Washington-Arlington-Alexandria, DC-VA-MD-WV
3,630
$95,480
$76,960
$110,200
$94,460
Los Angeles-Long Beach-Anaheim, CA
3,270
$97,510
$75,730
$102,910
$94,680
Dallas-Fort Worth-Arlington, TX
2,550
$74,340
$62,730
$92,010
$75,590
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD
2,430
$77,330
$60,700
$94,550
$77,230
San Francisco-Oakland-Fremont, CA
1,940
$101,490
$78,260
$122,500
$101,170
Houston-Pasadena-The Woodlands, TX
1,880
$75,280
$62,840
$80,470
$74,500
Atlanta-Sandy Springs-Roswell, GA
1,810
$78,460
$65,500
$93,570
$80,290
How to Evaluate an MLIS Program Before You Enroll
Because the value of an MLIS depends heavily on where you want to work, check each program against your own career target before you apply.
Confirm ALA accreditation
Look the program up in the American Library Association's directory of accredited programs instead of relying on a school's marketing page. Many public, school and academic library postings still list an ALA-accredited degree as a requirement.
Add up the full cost and likely debt
Compare in-state, out-of-state and online tuition rates, then add per-credit fees, technology fees and any required on-campus visits. Ask about scholarships, tuition waivers and employer tuition assistance before you borrow.
Match the format to your schedule
Check whether online courses are synchronous or self-paced, how many credits you can take part-time, and whether the program truly fits a full-time work schedule.
Ask about hands-on experience
Find out whether internships, practicums and graduate assistantships are available, how students are matched to them, and whether online students can complete placements near home.
Request placement outcomes in your target sector
Ask where recent graduates were hired and in which roles. Alumni working in the type of library or information organization you want are the most useful evidence.
Check specialization fit
Compare course offerings with the postings for the job you actually want, whether that is archives, data management, school librarianship or systems work. Note where an employer might prefer IT skills or a subject doctorate in addition to the MLIS.