Information Services Librarian Interview Questions
For reference and research librarians. Interviews focus on difficult searches, reference interviews and guides that help patrons use sources.
30 questions
Question 1: Walk me through a reference exchange where you clarified a patron's request to find the information they actually needed.
Suggested answerThe interviewer wants to learn how you clarify a patron's real information need before choosing resources.
Build your answer using Situation, Task, Action, Result. Briefly describe the patron's first request and your role in helping them. Spend most of the answer on the questions you asked, the resources you chose and how you checked that the information fit. Close with the outcome and a lesson from the exchange.
For example: "A patron asked for books about water pollution. I asked about the purpose of the search and learned they needed a short presentation on local streams. I clarified the audience and deadline, then helped them find a local water quality report and an introductory source explaining the terms. We looked at a section together to check that it answered their question. They left with sources they could use. I learned to clarify the purpose before gathering a stack of books."
Avoid assuming the first request tells the whole story, listing resources without explaining your choices, or claiming the patron was satisfied without checking.
What interviewers listen forA strong example shows the questions they asked, the information they found and how they checked its fit. Ignoring the patron's explanation of their need is a red flag.
Candidate tipChoose one real reference exchange. Explain the patron's first request, how you clarified it and what you found. End with the patron's response and what you learned about asking better questions.
Question 2: Walk me through how you decide where to search first when a patron asks a reference question.
Suggested answerThe interviewer wants to know that you choose sources on purpose and can judge their reliability. Explain your reasoning step by step, using one or two example questions.
Sample answer: I start by thinking about what kind of answer the patron needs. For a quick fact, such as a date or a definition, I go to a trusted reference work, in print or online. For a topic a student is researching, I start with our subscription databases, because the articles are reviewed and easy to cite. If a patron wants a book or a local history item, I search our catalog first and then the shared catalog for interlibrary loan. I use the open web for current events or government information, and I prefer official sites. Whatever the source, I check who published it, when it was updated and whether another source agrees. If I can't find a solid answer, I tell the patron what I tried and offer to follow up.
Pitfalls to avoid: going straight to a general web search for everything, naming sources without saying why you chose them, and not checking how current the information is.
What interviewers listen forA strong answer matches the source to the question, such as the catalog, a subscription database or a trusted reference work. Defaulting to a general web search every time is a red flag.
Candidate tipUse one or two example questions and explain why you would start with a particular database, reference work or the catalog. Mention how you check that a source is current and reliable.
Question 3: What factors do you weigh when deciding which books and electronic resources to add to the collection?
Suggested answerThe interviewer wants to see that your choices serve your community and follow policy, not personal taste. Organize your answer around the factors you weigh and give one example.
Sample answer: My first guide is the library's collection development policy and what our patrons actually use. I look at circulation and database usage reports to see which subjects are in demand and which sit on the shelf. I read professional reviews before buying most new titles, and I keep track of patron requests and holds lists, since a long holds list often means we need more copies or an e-book license. Format matters too: some titles get more use as e-books or audiobooks, while picture books still circulate best in print. Then I weigh cost against the budget, including ongoing fees for databases and digital licenses. For example, when several patrons asked for books on starting a small business, I found our newest one was several years old, so I ordered two current, well-reviewed titles.
Pitfalls to avoid: describing only your own reading tastes, forgetting the budget, and ignoring groups who don't ask for materials directly.
What interviewers listen forLook for professional reviews, circulation or usage data, patron requests, the collection policy and the budget. Choosing mainly by personal taste is a red flag.
Candidate tipName the sources you rely on, such as reviews, usage data and patron or faculty requests, and explain how the collection development policy and budget shape your choices.
Question 4: Walk me through how you catalog a new item that has no existing record to copy.
Suggested answerThe interviewer wants to know you understand original cataloging and the standards behind it. Walk through the steps in order and name the standards you have actually used.
Sample answer: First I examine the item itself: the title page, author, publisher, date and any series information. I search our catalog and the shared cataloging database once more to be sure no record exists. Then I create the record following the descriptive standard our library uses, recording the title, creators, edition, publication details and format. Next I search the authority file so names and subjects match the forms already in the catalog. I assign subject headings that describe what the item is about, and a call number from our classification system, which at my last library was Dewey. Before saving, I review each field for typos and check that the call number places the item next to similar ones on the shelf. If I'm unsure about a heading, I ask a colleague or check our local practices.
Pitfalls to avoid: skipping the authority check, guessing at a call number without looking at similar items, and naming standards you haven't used.
What interviewers listen forA strong answer covers describing the item, assigning subject headings and a call number, and checking authority records. Ignoring the library's local practices is a red flag.
Candidate tipDescribe the steps in order and name the standards and classification system you have used, such as Dewey or Library of Congress. Say how you check the record for accuracy.
Question 5: Share an example of how your teaching methods helped people learn in a library class you planned and taught.
Suggested answerThe interviewer wants to learn how your teaching choices helped people gain a useful skill in a library class.
Use Situation, Task, Action, Result to organize one real example. Identify the learners and the skill you wanted them to gain. Explain your planning and teaching choices, including how you checked learning. Finish with the result and something you learned that would shape your next class.
For example: "I planned a library class on finding articles in an online database. The goal was for each learner to find and open an article on a topic they chose. I demonstrated a short search, then let people practice while I answered questions. Several learners confused an article summary with the full text, so I paused to show the difference. At the end, each person tried another search without my demonstration. Their searches showed me which steps needed more practice. For the next class, I added a brief exercise on opening the full article."
Avoid describing only your slides, treating attendance as proof of learning, or claiming every learner succeeded without evidence.
What interviewers listen forListen for a learning goal, teaching choices and evidence that learners could use the skill afterward. Claiming success without checking learning leaves the result unsupported.
Candidate tipPick one library class, such as an information literacy or technology session. Describe your goal, the teaching methods you chose and how you checked learning. Include the result and one lesson for your next class.
Question 6: Tell me about a time you helped a patron with little computer experience search a database or use an online service.
Suggested answerThe interviewer wants to know you can teach basic computer skills patiently and leave the patron able to do it alone. Use Situation, Task, Action, Result.
Sample answer: A patron came in needing to apply for a job online and had never filled out a web application. Their deadline was the end of the week. I sat beside them and let them use the mouse while I explained each step in plain words. We started by setting up an email account, since the application needed one, and I wrote the steps on a sheet they could keep. When the form asked for a resume, I showed them how to save their document and find it again. It took two visits, but they submitted the application themselves. A few weeks later they came back and started a second application on their own, asking me only one question.
Pitfalls to avoid: taking over the keyboard, using technical terms without explaining them, and suggesting the patron was slow or difficult.
What interviewers listen forA strong answer shows patience, plain language and letting the patron do the clicking. Taking over the keyboard and doing it for them is a red flag.
Candidate tipDescribe what the patron needed to do, how you broke it into small steps, and how you made sure they could do it on their own next time.
Question 7: Describe a time you weighed conflicting reviews when deciding whether to buy a library resource.
What interviewers listen forListen for their own comparison of the reviews with the resource and collection needs, plus the purchase outcome. Dismissing a critical review without examining its concerns is a warning sign.
Candidate tipChoose one purchase decision with mixed reviews. Explain the disagreement, the evidence you checked and your decision, then say what later use or feedback showed.
Question 8: Walk me through a reference search where the patron had only a fragment of the information they wanted.
Suggested answerThe interviewer wants to learn how you turn fragmentary clues into a verified reference result.
Use Situation, Task, Action, Result for one real search. Explain the clues and uncertainty, then trace your own search decisions and verification. Finish with the patron's result and what you learned.
For example: "A patron remembered part of an article headline and a picture but not the publication. I asked about the subject and roughly when they had seen it. I tested several title fragments, then searched related terms in periodical sources. A likely result matched the subject, but I checked the article image before presenting it as the match. The patron recognized the picture and confirmed it was the article. I learned to use visual clues alongside remembered words."
Avoid treating a likely match as certain, listing search tools without explaining your choices or claiming the patron confirmed a result when you did not check.
What interviewers listen forListen for the candidate's own use of clues, searches and verification of the result. Presenting a likely match as certain without checking is a red flag.
Candidate tipChoose a request with incomplete details. Trace how you tested the clues, narrowed the search and checked the final match with the patron.
Question 9: Describe a research guide you built to help patrons compare sources on a difficult topic.
Suggested answerThe interviewer wants to learn how your research guide helps patrons make sense of competing sources.
Describe the research difficulty, your task and the readers the guide served. Explain your own selection, organization and annotations. End with a test or feedback that showed whether the guide worked.
For example: "Patrons researching local water use were finding reports with different purposes and time periods. I built a guide that separated agency reports, background explanations and local records. For each source, I described its coverage and the questions it could help answer. I tested the guide with a sample inquiry and asked a colleague to follow it without my explanation. Their questions showed where I needed to clarify the date ranges."
Avoid assuming a link list explains source differences, claiming every source is equally useful or reporting usefulness without any test or feedback.
What interviewers listen forThe example should explain their own source choices, useful annotations and evidence patrons could use the guide. A list of links with no explanation may leave the same problem unsolved.
Candidate tipExplain the research need, how you selected and organized sources and what you wrote to help users compare them. End with feedback or another check of usefulness.
Question 10: Share an example of how you revised a bibliography you compiled for a patron's research after finding a gap in it.
What interviewers listen forListen for the missing part of the patron's topic, the sources they added and whether the revised bibliography helped. Adding sources without checking that they fit the patron's question is a red flag.
Candidate tipUse one bibliography you built for a patron's research. Explain how you found the missing part of their topic, searched for sources to fill it and checked each one fit. End with the result and what you changed in later lists.
Question 11: How do authority records help you distinguish authors who have the same name in the library catalog?
What interviewers listen forA sound answer uses dates, fuller names or other identifying details to select the right authorized name. Merging authors just because their names match can mislead catalog users.
Candidate tipExplain how you compare the author with an authority record and link the right form of the name to the item. Include what you do when the available details do not establish a match.
Question 12: Describe a time you used input from colleagues, faculty, or community members to improve a library service.
What interviewers listen forListen for whose input they sought, how it changed the library service, and the result. Claiming to consult people while ignoring their concerns is a warning sign.
Candidate tipChoose one library service decision that benefited from consultation. Explain the input you sought, what you changed because of it, and what happened for library users.
Question 13: Walk me through a time you kept daily library services running smoothly while supervising staff.
What interviewers listen forA strong example connects their staffing decisions and follow-up to reliable library service. Leaving a service desk without coverage or a handoff is a warning sign.
Candidate tipSet out the day's service demands and your supervisory role. Focus on how you assigned work, adjusted coverage, and checked that patrons still received help. Finish with the result.
Question 14: What do you consider when evaluating a library vendor's products and service?
What interviewers listen forExpect attention to patron needs, product usability, total cost, and the vendor's delivery or support record. Choosing on a sales claim without checking it is a warning sign.
Candidate tipUse a library purchase, such as a database subscription, to explain your criteria. Cover how you would check its usefulness for patrons, full cost, and the vendor's record of meeting commitments.
Question 15: What would you do if a database vendor's renewal terms limited access that library patrons currently have?
What interviewers listen forThey should examine the changed access terms and patron impact before agreeing to renew. Signing first and checking access limits later puts library service at risk.
Candidate tipStart with the access that would be lost and the terms you would clarify with the vendor. Explain how patron needs, alternatives and renewal authority would shape your recommendation.
Question 16: Tell me about a time you led library staff through learning a new procedure.
What interviewers listen forLook for clear staff instructions, training suited to their experience, and checks on their work afterward. Treating attendance at a demonstration as proof of competence is a warning sign.
Candidate tipChoose a library procedure you helped staff learn. Describe your instructions, how you helped them practice, and how you checked their work. End with what they could do afterward.
Question 17: Tell me about a time you found a shelving mistake that showed a gap in a library staff member's training.
What interviewers listen forThe example should show how they traced the shelving error to a training need, coached the employee and checked later work. Blaming the employee without checking their instruction is a red flag.
Candidate tipDescribe the shelving error and how you established what the staff member had misunderstood. Focus on your coaching and the evidence that their shelving improved.
Question 18: Share an example of how you arranged a loan from another library to fill a patron's request.
What interviewers listen forListen for an accurate request, coordination with the lending library, and clear pickup and return details for the patron. Promising an arrival date the lender has not confirmed is a warning sign.
Candidate tipUse one interlibrary loan, meaning borrowing from another library. Explain how you identified the item, arranged the request, and kept the patron informed. End with whether the item met the patron's need.
Question 19: Share an example of how you handled an interlibrary loan that was delayed beyond a patron's deadline.
What interviewers listen forA strong example shows early contact with the lending library and patron, an honest estimate and a usable alternative when possible. Promising an arrival date they could not confirm is a red flag.
Candidate tipSet out the patron's deadline and the loan delay. Describe your own follow-up with the lending library, the options you offered the patron and the final outcome.
Question 20: What do you check before completing a library checkout when an item has several parts?
What interviewers listen forExpect a check of the item's parts against its contents list and an accurate record of anything missing before checkout. Recording an unchecked set as complete is a red flag.
Candidate tipWalk through checking the case, discs or other listed pieces and recording their condition. Say how you handle a missing part before the patron leaves with the item.
Question 21: How do you check the library's inventory against its holdings records?
What interviewers listen forA competent approach compares item identifiers and locations, investigates differences and updates verified records. Marking an unchecked item present defeats the inventory.
Candidate tipExplain how you compare shelf or scan results with holdings records, including items on loan. Describe the checks you make before changing a missing or misplaced item's status.
Question 22: How would you explain the difference between searching the library catalog and searching an article database to a patron?
What interviewers listen forThe answer should distinguish records for library materials from records for articles and help the patron choose a starting point. Saying every catalog includes every database article is misleading.
Candidate tipUse a simple example of finding a book versus finding an article. Explain what each search covers and note that some library search tools combine results.
Question 23: Share an experience in which you resolved a difficult customer complaint.
Question 24: Tell me how you handled a patron who disputed a charge for a library item they said was already damaged.
What interviewers listen forLook for the librarian's own checks of the item and condition notes, a fair decision within their authority and a clear outcome. Treating the charge itself as proof the patron caused the damage is a red flag.
Candidate tipUse one real dispute. Explain how you heard the patron out, checked the item and any condition notes, and confirmed your authority to adjust the charge. End with the decision and the patron's response.
Question 25: Walk me through a time you changed your search approach after an unusual library reference request led to dead ends.
What interviewers listen forListen for a specific dead end, a reasoned change of source or search terms and an honest outcome. Claiming the answer must not exist after one failed search is a red flag.
Candidate tipChoose an unusual request that resisted your first searches. Spend most of the answer on the clues you followed and the changes you made, then state what you could and could not find.
Question 26: Describe effective library policies and procedures you have developed.
Question 27: Give an example of how you revised a library procedure that staff were applying inconsistently.
What interviewers listen forLook for evidence of inconsistent practice, a clear revision and a check that staff could apply it consistently. Quietly changing the procedure without informing staff leaves the problem in place.
Candidate tipName the procedure and the different ways staff were following it. Explain your part in clarifying the steps, communicating the revision and checking the result.
Question 28: Describe a time you fixed a broken link or search feature in a library research guide.
What interviewers listen forThey should identify the failing link or search feature, correct its cause and test the patron's path afterward. Declaring the guide fixed without trying it is a red flag.
Candidate tipDescribe what failed in the research guide, how you traced the fault and what you changed. End with how you tested that patrons could reach the intended information.
Question 29: Give an example of how you used a new library technology or online resource to help patrons or staff.
What interviewers listen forListen for the tool or resource, how they learned to use it and a concrete benefit for patrons or staff. Presenting a planned rollout as an improvement already achieved is a red flag.
Candidate tipChoose a library tool or online resource you actually used. Explain how you learned it, how you put it to work and what improved for patrons or staff. End with a lesson from using it.
Question 30: Share an example of how you taught a patron who couldn't find sources in a library database to search it on their own.
What interviewers listen forListen for the librarian's own teaching steps, such as choosing search terms and using filters, and the patron searching on their own afterward. Running the whole search for them without showing how is a red flag.
Candidate tipChoose one patron who struggled to find sources. Describe how you showed them search terms, filters or subject headings, and how you checked that they could search on their own.