Interlibrary loan, often shortened to ILL, is one of the most useful services a library can offer. If your local branch does not own a book, journal article, film, or other item you need, interlibrary loan gives the library a way to borrow it from another library on your behalf. The exact rules vary by library system, but the workflow is usually straightforward: find the request form, identify the item, submit the request, wait for confirmation, and pick up or download the material when it arrives.
This guide walks through how to use interlibrary loan from start to finish. It is written for everyday library users who want a clear, practical explanation. If you have never placed an ILL request before, the process may seem mysterious at first, but it is mostly a matter of following a few steps and paying attention to loan periods, pickup instructions, and any special restrictions on the item.
What interlibrary loan does
Interlibrary loan expands access beyond the shelves of a single library. Instead of limiting you to what your local branch owns, the library can search partner institutions and request a copy or loan from them. That can include:
- Print books
- Magazine or journal articles
- Research reports
- Microfilm or microfiche
- DVDs or other physical media, depending on the library
- Digitized scans of chapters or articles, when allowed
The main idea is simple: if your library cannot supply an item directly, it can often help you get it somewhere else.
When to use it
Interlibrary loan is best when you have already checked your own library catalog and still need something specific. Use it when:
- The item is not in your library’s collection
- Every local copy is checked out and you cannot wait
- You need a scholarly article that is behind a paywall
- You need an older or less common title
- You want a copy for research, coursework, or personal study
It is usually not the fastest way to get a popular new book. If your goal is to read a bestseller immediately, a hold or purchase request may be better. ILL is strongest for hard-to-find items and research materials.
A quick overview
| Step | What you do | What happens next |
|---|---|---|
| 1 | Search the library catalog | Confirm the item is unavailable locally |
| 2 | Open the ILL request form | Enter the item details |
| 3 | Submit your request | Staff review and send it out |
| 4 | Wait for updates | You receive approval, denial, or arrival notice |
| 5 | Pick up or access the item | Follow the loan rules and return deadlines |
That basic sequence is the same in many library systems, even if the website design or terminology changes.
How to submit a request
The exact path depends on your library, but the usual process looks like this:
1. Sign in to your library account
Most systems require a valid library card and online account. If you are not signed in, the request form may not show your account information or may not submit correctly.
2. Find the interlibrary loan page
Look for links labeled:
- Interlibrary loan
- ILL
- Request a book
- Request an article
- Borrow from another library
Some sites place the link under Services, Research, or My Account.
3. Choose the correct request type
Many systems separate requests by format. Common categories include:
- Book
- Article
- Chapter
- DVD or media
- Thesis or dissertation
Pick the one that best matches your item. If you request an article as if it were a book, staff may need to correct it before the request can move forward.
4. Fill in as much detail as possible
You can usually speed up the process by supplying the most complete citation you have. Helpful details include:
- Title
- Author
- Publication year
- Journal title or book title
- ISBN or ISSN
- Edition or volume number
- Page range for articles or chapters
The more precise the information, the easier it is for staff to identify the item and find a lending library.
5. Submit and watch for email updates
After submission, the library may send a confirmation or contact you if something is missing. Be sure your email address is current and that library messages are not getting filtered into spam.
What happens behind the scenes
Once you click submit, the library usually checks the request and tries to locate a lending partner. The request may be filled through a regional consortium, a national network, or a broader interlibrary system.
The staff may need to:
- Verify that the item exists in another library
- Check whether it can be loaned
- Confirm copyright or fair use rules for article copies
- Compare several lending options if some libraries decline
- Wait for a reply from the lending institution
This is why turnaround time can vary so much. Some items arrive in a few days. Others take longer because they are rare, in heavy demand, or restricted by lending rules.
What to expect when the item arrives
When your request is filled, you will usually receive an email or account notification. The item may arrive in one of two ways:
- Physical pickup at your library’s circulation desk
- Digital access through a secure link or account portal
If it is a physical item, the loan may come with a shorter due date than a normal library book. It may also have special conditions, such as:
- In-library use only
- No renewals
- No holds by other patrons
- Return to a specific desk or location
If it is a digital copy of an article or chapter, access may expire after a certain period. Save or print only what the library allows.
Good habits that make ILL smoother
A little preparation saves time later. These habits help:
- Double-check the citation before submitting
- Use the exact title if you have it
- Include page numbers for article or chapter requests
- Watch your email regularly
- Pick up physical items promptly
- Return items by the due date
- Read all loan restrictions carefully
If your library allows renewals, request one before the deadline rather than after it. Some lenders refuse renewals entirely, so do not assume an extension will be available.
Common problems and how to handle them
The item is not found
Sometimes a request is denied because the item is too new, too obscure, or not available through lending partners. If that happens, try:
- Rechecking the title and author
- Searching for a different edition
- Asking a librarian whether another format exists
- Requesting a chapter or article instead of the full work
The request takes too long
Delays are common when the item is rare or the lending network is busy. If the wait becomes unreasonable, contact the library and ask for an update. They may be able to tell you whether the request is still active.
The citation is incomplete
If you submitted partial information, staff may ask for more details. Respond quickly. Even a small correction, like the right publication year or journal issue, can make the difference between approval and denial.
You miss the pickup notice
Check your spam folder and library account messages. Some systems automatically expire a request if you do not pick it up in time, so do not let the notification sit too long.
Tips for students and researchers
Interlibrary loan is especially valuable for schoolwork and research. If you are working on a paper, dissertation, or project, try to request materials early in the process rather than the night before a deadline.
A few practical strategies:
- Build a reading list early
- Request articles as soon as you identify them
- Keep a simple record of requested items
- Note whether the item is for background reading or a key source
- Plan for possible delays if the source is essential
If a source is central to your work, do not rely on ILL as your only access method. Search for alternate editions, other databases, or preview copies while your request is pending.
Short checklist before you submit
Use this quick list before sending a request:
- I searched the library catalog first
- I selected the right request type
- I entered accurate bibliographic details
- I confirmed my contact information
- I understand the due date and loan restrictions
- I know where to pick up the item or how to access it online
That small review reduces back-and-forth with staff and improves your chances of a quick fill.
What to remember
Interlibrary loan is a practical way to extend the reach of your library card. Once you know where to find the request form and how to enter accurate details, the process becomes routine. The biggest things to remember are simple: search locally first, provide complete information, watch for status updates, and pay attention to return rules.
If you use ILL a few times, it becomes one of the most reliable tools in your research toolkit. The service exists to help you get beyond the limits of a single collection, and for many readers, that makes it indispensable.
FAQ
Is interlibrary loan free?
Many libraries offer ILL at no cost, but some may charge fees for shipping, photocopying, or special requests. Check your library’s policy before submitting.
How long does it take?
It depends on the item and the lending network. Some requests are filled quickly, while others take longer. Rare or heavily requested items usually take more time.
Can I renew an interlibrary loan item?
Sometimes. Renewals depend on the lender’s rules. Some items can be renewed once, others cannot be renewed at all.
Can I request anything I want?
No. Libraries generally cannot borrow items that are in high demand, non-circulating, too new, or restricted by the lending library.
Do I need a library card?
Usually yes. Most systems require an active card and an online account to place requests.