Day: September 2, 2026

Do You Need a Different ISBN? Format & Edition Rules

Do You Need a Different ISBN

You need a different ISBN when you publish a distinct book product: a different format or binding, a new edition with substantial content changes, another language, a large-print version, or a separately available digital format. You do not need a new ISBN simply because the same unchanged product is sold through another retailer, printed by […]

ISBN vs UPC: Which Identifier Does Your Book Need?

ISBN vs UPC

An ISBN identifies a specific book product—its publisher, edition, language, and format—inside the publishing supply chain. A UPC identifies a general retail trade item in point-of-sale and inventory systems. Most ordinary books need an ISBN, not a separate UPC. The ISBN is converted into the EAN-13 barcode commonly printed on the back cover. A separate […]