Textbook ISBN and Edition Checklist: Buy the Right Used Copy
A practical checklist for matching a used textbook to your reading list: ISBN-10 vs ISBN-13, editions vs reprints, international editions, format, access codes, condition and delivered price.
UniBookTrade.co.uk
Updated Published 4 min read
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Quick answer: match the ISBN on your reading list to the copy for sale, then check the edition statement, format and included components (volumes, workbooks, access codes). A familiar title and cover aren't enough. The International ISBN Agency explains that revised editions and different formats get different ISBNs, while an unchanged reprint can keep the same one.
Same book or different?
| What you see | Same book for your course? | What to check |
|---|---|---|
| Same ISBN-13 | Almost certainly | Condition and components |
| ISBN-10 and ISBN-13 both printed | Yes, the same publication | The ISBN-13 is the ISBN-10 with 978 in front and a new final digit |
| Same title, different edition number | No, until your tutor says so | Chapters, exercises, page references |
| Same edition, hardback vs paperback | Usually same content | Page numbering can differ |
| "International" or "Global" edition | Treat as different | ISBN, chapters, exercises, units |
| Same title, different ISBN, no edition change | Possibly a new format or bundle | What's included |
| Study guide or "companion" with a similar name | No | Author and title |
Keep this comparison beside the listing
| Check | Reading list or publisher | Copy offered for sale |
|---|---|---|
| Title and author | Required title | Same work, not a study guide with a similar name |
| ISBN | Number for the specified format | Number on the barcode or copyright page |
| Edition | Required edition | Printed edition statement |
| Format | Paperback, hardback, digital or bundle | What's actually included |
| Required components | Volumes, workbook or online exercises | Included, missing or bought separately |
| Condition | Your minimum acceptable condition | Photos and seller's description |
| Timing and cost | Date needed and budget | Delivered total and expected arrival |
Copy the ISBN exactly, including a final X on older ISBN-10s (the X stands for 10 in the check digit). Don't treat ISBN-10 and ISBN-13 as two editions just because they're different lengths.
Where to find the number
Look beside the back-cover barcode and on the copyright page near the front. A sticker can hide the original barcode, so check inside if the numbers disagree. For a multi-volume set, work out whether a number refers to the whole set or one volume, and record each book you actually need.
The Reading List Checker checks several ISBNs against UBT at once. A matching catalogue entry doesn't prove a seller has included every extra component, so read the listing and look at the photos.
When an older edition might work
Ask your tutor or course provider whether a different edition is acceptable. Chapter order, exercises and page references can change even when the topic is the same.
Some subjects have their own rules:
- ACCA: most 2026-27 papers didn't change, but TX and ATX need the Finance Act 2025 edition and APM needs a 2026-27 edition. See can you use last year's ACCA study text?
- CIMA and AAT: CIMA editions follow the calendar year; AAT non-tax units are stable; AAT tax units need the current Finance Act edition.
- SQE: check the edition against the SRA law cut-off for your window, and note that SQE1's format changes from January 2027.
- Medicine: one edition old is often fine for core science, but no book should be your source for current doses or guidelines.
- Open University: match the module code and presentation as well as the ISBN. See the OU checklist.
Access codes and annotations
Don't assume a used book includes reusable online access. Check the publisher's terms for the platform you need, and add the cost of any separate licence before comparing offers.
Ask for clear photos of highlighting, damaged pages or filled-in workbooks. Sellers should describe defects rather than relying on a general condition label. Avoid a copy if essential pages are missing.
Before checkout
Confirm the ISBN, format, included components, condition and delivered total. If the edition isn't available, set a stock alert and compare other sellers. Our website comparison explains the difference between marketplaces, buyback services and booksellers.
Check your reading list or find an exact edition. Selling instead? Photograph the ISBN and edition statement so the next student can make the same checks.
Frequently asked questions
Does a different ISBN mean a different edition?
Not always. A revised edition gets a new ISBN, but so does each format, such as hardback, paperback or e-book. An unchanged reprint can keep the same ISBN. Check the edition statement on the copyright page as well as the number.
Are ISBN-10 and ISBN-13 the same book?
They can be. Books published before 2007 often show both. The ISBN-13 is the ISBN-10 with 978 in front and a recalculated final check digit, so the two numbers look different but identify the same publication.
Is an international edition the same as the UK edition?
Treat it as a different book until you have checked. International editions have their own ISBN and can differ in chapters, exercises, units or page numbering.
Where is the ISBN on a textbook?
Above or beside the barcode on the back cover, and on the copyright page near the front. If a sticker covers the barcode, use the copyright page.
Put the guide into practice
Search second-hand course books by exact ISBN, with buyer protection and tracked delivery on every order.
Check a reading listMore guides
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