Free ISBN Barcode Generator

The Author's Guide to ISBN Barcodes, Bookland EAN & Cover Design

An ISBN (International Standard Book Number) is the international catalog identifier assigned to books, monographic publications, and pamphlets. Since January 1, 2007, all ISBNs contain 13 digits, aligned directly with the global EAN-13 barcode system under the Bookland designation. If you are an independent author publishing print books on Amazon KDP, IngramSpark, or Barnes & Noble Press, you need a high-resolution, scannable ISBN barcode placed on the lower back cover of your book.

Anatomy of an ISBN-13 Number

An ISBN-13 is partitioned into five hyphenated segments:

• Bookland Prefix (978 or 979): Identifies the product as a book within the GS1 international trade system.
• Registration Group (Language / Geographic Area): 0 or 1 indicates English-speaking regions (US, UK, Canada, Australia); 2 indicates French; 3 indicates German; 93 indicates India.
• Registrant Element (Publisher Identifier): Identifies the specific imprint or self-published author account.
• Publication Element (Title Identifier): Identifies the specific title, edition, or binding (paperback vs. hardback).
• Checksum Digit: The final digit calculated using the standard EAN-13 modulo-10 formula.

Understanding the 5-Digit Price Add-On (EAN-5)

In major bookstore chains like Barnes & Noble, Waterstones, and independent bookshops, cash registers scan a secondary, smaller barcode immediately to the right of the main ISBN. This 5-digit extension automatically rings up the retail price:

• Currency Code (First Digit): 5 = US Dollars ($), 6 = Canadian Dollars ($), 4 = British Pounds (£), 3 = Australian Dollars ($).
• Price in Cents (Next Four Digits): For example, a book priced at $14.95 USD encodes as 51495. A book priced at $9.99 USD encodes as 50999.
• Unpriced Code (90000): If you do not want a fixed retail price hardcoded onto your book cover (allowing retailers to set their own price or accommodating international distribution), publishers use 90000.

Where to Place the Barcode on Your Book Cover

The International ISBN Agency guidelines dictate:

1. Place the barcode in the lower right-hand quadrant of the back cover.
2. Maintain at least 0.25 inches (6.35 mm) of clear margin (quiet zone) between the barcode bars and the trim edge, spine fold, or any background art.
3. Do not print dark photographs or colored graphics behind the barcode. Always place the barcode on a solid white rectangular box to ensure high optical scan contrast.