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Buying guide

How to Order Textbooks in Bulk by ISBN

The ISBN is the most reliable way to order the exact textbook your course needs. This guide shows where to find it, why it matters when you buy in bulk, and how to build an order list without mistakes.

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Ordering by ISBN, step by step

1. Find the ISBN-13 for each title
The ISBN-13 is a 13-digit number, usually starting with 978 or 979. It is printed above the barcode on the back cover and on the copyright page, and it is often listed on the course syllabus or adoption list.
2. Check the edition and format
Each edition and each format (paperback, hardcover, spiral-bound) has its own ISBN. A new edition can change the content and the page numbers, so make sure the ISBN matches the edition your instructor specifies.
3. Search by ISBN
On Global Academic Supply you can search by title, author or ISBN from the search bar. Each title page shows its ISBN-13, the minimum order quantity and the quantity price tiers.
4. Add the quantity for each title
Enter the number of copies for each ISBN. Most titles start at 5 copies, and the price per copy steps down at higher quantities. See how bulk pricing tiers work.
5. Request a quote for very large quantities
If a title has a 100+ tier, orders at that size are quoted individually. Request a bulk quote with the ISBN and the quantity.
6. Check the ISBNs when the books arrive
Compare the ISBN on the books with your order list before you hand them out. If something does not match, report it promptly. Our Returns page explains the process.

ISBN checklist before you order

✓ISBN-13 copied from the syllabus or the book itself
✓Edition and format match what the instructor specified
✓Quantity decided for every ISBN, with a few spares
✓No old-edition ISBN left on the list by mistake
✓Order list saved so you can compare it on delivery

Ready to order?

Search the full catalog by ISBN, or browse wholesale textbooks. New to buying in bulk? Read the Bulk Textbook Buying Guide.

Frequently asked questions

What is the difference between ISBN-10 and ISBN-13? +
ISBN-10 is the older 10-digit format. ISBN-13 is the current 13-digit format and usually starts with 978 or 979. When you order, use the ISBN-13 where you can.
Why does the edition matter when I order in bulk? +
Editions can differ in content, chapter order and page numbers. If a class receives a different edition from the one the instructor teaches from, students can end up working from mismatched material. Always match the ISBN to the edition specified.
Where do I find the ISBN of a textbook? +
Look above the barcode on the back cover or on the copyright page inside the book. It is also normally listed on the course syllabus or the adoption list from your department.
Can I order different titles in one order? +
Yes. Add each title with its own quantity. Quantity tiers are shown on each title page, so check the quantity for each ISBN.
What if I cannot find a title? +
Search again using the ISBN-13 or the exact title and edition. If you still cannot find it, use the bulk quote option and tell us the ISBN and the quantity.