Five-point check
How to identify a copy
- Read the ISBN.Match all 13 digits; format and territory usually have different identifiers.
- Check format and dimensions.A hardback, paperback, ebook and audiobook are separate editions even when the cover resembles another.
- Find the publication line.“First published” names the work’s history; a number line or explicit impression statement identifies the printing more precisely.
- Confirm imprint and territory.UK Penguin or Viking details should not be applied automatically to US or translated editions.
- Record condition plainly.Note jacket, inscriptions, damage and provenance without turning them into a valuation.








