Where to Find Free Textbooks and How to Use Them
Free textbooks exist through your school library, open educational resources, rental programs, and used marketplaces — but which one works depends on your subject, your timeline, and whether you need the book for the whole semester or just a few weeks.
Your school library is the fastest place to start. Most college and university libraries hold physical copies of textbooks on reserve, meaning you can check them out for a few hours at a time during the semester. Some libraries also offer digital access through their databases — you read on their platform, usually with limits on printing and downloading. Ask a librarian which textbooks are on reserve; they can tell you in minutes whether your book is there and how long you can keep it.
If your library doesn't have the book, or if you need it longer than reserve checkout allows, open educational resources (OER) are textbooks written by educators and released free for anyone to use. They exist for common subjects like math, chemistry, biology, economics, and writing. OpenStax, a nonprofit at Rice University, publishes peer-reviewed OER textbooks in dozens of subjects. You can read them online free, download them as PDFs, or order a printed copy for a low cost. Other sources include Open Textbook Library (hosted by the University of Minnesota) and Project Gutenberg for older texts in the public domain.
Key Takeaways
- Your school library holds physical textbooks on reserve and may offer digital access through its databases at no cost to you.
- Open educational resources like OpenStax textbooks are free to read online and cover common subjects like math, chemistry, and economics.
- Textbook rental programs through your bookstore or third-party sites cost far less than buying and let you return the book at semester's end.
- Used marketplaces like ThriftBooks, Better World Books, and Facebook Marketplace often have textbooks for under $20, and you keep the book after the course ends.
- Your professor may have desk copies or older editions they can lend, or they may know which chapters matter most if you can only access part of the book.
How to search your school library's collection
Log into your school's library website using your student ID. Search for the textbook by title or ISBN (the 13-digit number on the back cover). The search results will show you whether the book is in the physical collection, how many copies exist, and whether any are currently checked out. If the book is on reserve, the results page will say so and show the checkout time limit.
If your library doesn't own the book, ask a librarian about interlibrary loan — a service that borrows books from other libraries. This takes longer (usually one to two weeks) but costs you nothing. Some libraries also participate in reciprocal borrowing agreements with nearby schools, so you may be able to walk into another campus library and check out a book directly.
Understanding open educational resources and where to find them
Open educational resources are textbooks, course materials, and videos that educators have written and released under a license that lets anyone use them free. They are peer-reviewed the same way traditional textbooks are, but they are not sold through bookstores. Instead, they live on nonprofit websites where you can read them online, download them, or order a printed copy.
OpenStax (openstax.org) is the largest source. Search their catalog by subject — they have textbooks in biology, chemistry, physics, math, statistics, economics, history, and more. Each book shows the ISBN if you want to order a print copy, and you can download the PDF or read it in your browser. Open Textbook Library (open.umn.edu/opentextbooks) indexes free textbooks from many publishers and lets you filter by subject and level. Project Gutenberg (gutenberg.org) has older texts in the public domain, useful for literature, history, and philosophy courses.
Not every course has an OER textbook yet. If you don't find one for your subject, ask your professor whether they know of one or whether they would consider adopting one for future semesters.
Renting textbooks instead of buying them
Textbook rental costs roughly 50 to 70 percent less than buying new. Your school's bookstore almost always offers rentals alongside sales — you pay a rental fee, use the book for the semester, and return it by the deadline. The bookstore handles the return logistics, so you just drop it off or mail it back depending on the program.
Third-party rental sites like Chegg, Amazon, and Alibris also rent textbooks and sometimes offer lower prices than your bookstore. Compare prices across all three before you decide. Read the rental terms carefully: some rentals are non-returnable if you highlight or write in the book, while others allow marking. All rentals charge a late fee if you return the book after the deadline, so mark the return date on your calendar.
Rental makes sense if you need the book for only one semester and don't plan to keep it afterward. If you think you'll use the book in future courses or want to build a personal library, buying used may cost less over time.
Buying used textbooks from online and local marketplaces
Used textbooks often cost $15 to $40, depending on how recent the edition is and how much demand exists. ThriftBooks, Better World Books, and AbeBooks are large online used textbook marketplaces where you can search by ISBN and compare prices across sellers. Facebook Marketplace and Craigslist have local sellers, which saves you shipping time and cost. Campus buy-and-sell groups on Facebook often have students selling textbooks from previous semesters.
When you buy used, check the edition number carefully. A newer edition may have different page numbers and problem sets, which matters if your professor assigns specific pages or problems. Ask your professor whether an older edition will work for the course — sometimes it will, and you can save significantly.
One advantage of buying used: you own the book after the course ends. You can resell it, donate it, or keep it for reference. You can also write in it and highlight without penalty.
Asking your professor for help accessing the textbook
Tell your professor early if you cannot find the textbook through your library or cannot afford to buy or rent it. Many professors have desk copies (free copies sent to them by publishers) that they can lend for short periods. Some will let you photograph chapters you need most, or they can tell you which sections are essential and which are supplementary — information that helps if you can only access part of the book.
Professors also sometimes know about free or low-cost alternatives to the official textbook, or they may be willing to put the textbook on reserve at the library if it isn't already. The conversation takes five minutes and often leads to a solution you didn't know existed.
Comparing costs across all options
| Option | Cost | How long you have it | Best for |
|---|---|---|---|
| Library reserve (physical) | Free | A few hours at a time | Reading specific chapters or checking facts |
| Library digital access | Free | As long as you're a student | Reading the whole book if the library has digital access |
| Open educational resources | Free online; $20–$50 for print | Forever (you own it or access it) | Courses in math, science, economics, or writing |
| Textbook rental | $30–$100 | One semester | Courses you won't take again |
| Used textbook | $15–$60 | Forever (you own it) | Building a library or courses you might reference later |
| New textbook | $100–$300 | Forever (you own it) | Rarely the best choice unless you need it for multiple courses |
Start with your library and ask about reserve and digital access. If that doesn't work, search for an open educational resource in your subject. If neither exists, compare rental and used prices, then decide based on whether you want to keep the book after the semester.
Frequently Asked Questions
Can I use an older edition of a textbook instead of the current one?
Sometimes. Older editions are usually cheaper, but page numbers and problem sets may differ. Ask your professor directly whether an older edition will work for the course. Many professors say yes, especially for subjects like history or literature where the content doesn't change much between editions.
What if my library doesn't have the textbook and there's no open educational resource for my subject?
Rent or buy used. Compare prices on Chegg, your bookstore, and used marketplaces like ThriftBooks or Facebook Marketplace. Also ask your professor whether they have a desk copy you can borrow or whether they know of alternatives. Some professors will put a book on reserve if you ask.
Can I share a textbook with a classmate to split the cost?
You can split the cost of a used book or rental, but check the rental terms first — some rentals are non-transferable. If you buy used, you both own it after the course, so you'll need to decide who keeps it or resells it. Sharing a library reserve book works too, but you're limited to a few hours at a time.
Do I have to return a rental textbook in perfect condition?
Most rental programs allow normal wear and tear — bent pages, creased spine, and highlighting are usually fine. Writing in the book or water damage may result in a damage fee. Read your rental agreement before you sign to see what counts as damage at that specific company.
Where can I sell my textbook after the course ends?
The same places you bought it used: ThriftBooks, Better World Books, AbeBooks, Facebook Marketplace, and Craigslist. Your school's bookstore also buys back textbooks, though they usually offer less than online marketplaces. Compare offers before you sell.