How to Get an ISBN and Barcode for a Book: A Complete Step-by-Step Guide for Authors

If you’re preparing to publish your first book, one of the most important steps is learning how to get an ISBN and barcode for a book. Whether you’re self-publishing or going through a small press, understanding these identifiers is essential for distribution, sales tracking, and professional presentation.

In this detailed guide, we’ll cover everything you need to know about ISBNs and barcodes — what they are, why they matter, how to get them in your country, and how to apply them correctly to your book. By the end, you’ll be ready to publish with confidence.

What Is an ISBN?

The ISBN (International Standard Book Number) is a unique identifier assigned to every published book and edition. It helps bookstores, libraries, publishers, and online retailers track and manage books efficiently.

An ISBN is a 13-digit code (previously 10 digits before 2007) that identifies:

• The book title
• The edition
• The format (paperback, hardcover, ebook, etc.)
• The publisher

Think of it as your book’s digital fingerprint. No two ISBNs are alike, and each version of your book needs its own.
For example:

• Paperback: one ISBN
• Hardcover: another ISBN
• eBook: another ISBN

If you update your book with major changes or a new edition, you’ll need a new ISBN too.

Why You Need an ISBN

Understanding why an ISBN matters can help you avoid costly mistakes. Here’s what an ISBN does for your book:

1. Global recognition: It allows your book to be listed in databases like Amazon, Google Books, Nielsen BookData, and Bowker’s Books In Print.
2. Sales tracking: Retailers and distributors use ISBNs to manage inventory, track sales, and report royalties.
3. Professional credibility: A book without an ISBN often looks self-produced or incomplete.
4. Library cataloging: Libraries require ISBNs to catalog and lend your book.
5. Ease of distribution: If you plan to sell your book in bookstores, you must have an ISBN.

If you’re only creating a private, non-commercial book — like a family memoir or internal corporate manual — you might not need one. But if your goal is to reach a wide audience, an ISBN is non-negotiable.

Understanding Book Barcodes

A barcode is the machine-readable image printed on the back of your book that encodes your ISBN. When scanned, it allows retailers to identify and sell your book instantly.

Barcodes for books are typically EAN-13 barcodes, which include:

• Your 13-digit ISBN
• Optional price information

If you’ve ever looked at the back of a published book, you’ve seen one: a rectangular box with black vertical lines and numbers below it.

Barcode Format Example:

ISBN vs Barcode — What’s the Difference?

Although related, ISBNs and barcodes are not the same thing:

You must first obtain an ISBN before you can generate a barcode.

Step 1: Determine If You Need an ISBN

Before you buy one, ask yourself:

• Will my book be sold in stores or online marketplaces?
• Will I publish multiple formats (ebook, paperback, hardcover)?
• Do I want to appear as a professional publisher?

If you answered “yes” to any of these, you’ll need at least one ISBN.

Each format and edition requires a separate ISBN. For instance:

• “My Life Story” paperback → ISBN 978-1-23456-789-0
• “My Life Story” ebook → ISBN 978-1-23456-790-6

Even if the content is identical, each format is treated as a distinct product.

Step 2: Find Your Country’s ISBN Agency

ISBNs are issued by national agencies authorized by the International ISBN Agency in London. Every country has its own official provider.

Here’s a quick list of major ISBN agencies:

💡 Tip: If your country isn’t listed, visit https://www.isbn-international.org and search for your national agency.

Step 3: Apply for an ISBN

Once you know your agency, you can apply online. The process usually involves creating an account and filling in your book’s metadata.

You’ll need to provide:

• Title and subtitle
• Author name(s)
• Publisher name (can be your own self-publishing imprint)
• Format (paperback, ebook, etc.)
• Language
• Publication date
• Book category or subject code

After submission, your agency will assign your unique ISBN(s).

Cost of an ISBN

Prices vary by country:

• USA (Bowker): $125 for one, $295 for 10, $575 for 100
• UK (Nielsen): £91 for one, £164 for 10
• Canada: Free (but slower processing)
• India: Free, via the government portal

If you plan to publish multiple books, buying in bulk saves money long-term.

Step 4: Generate a Barcode from Your ISBN

After you receive your ISBN, the next step is to create a barcode.
The barcode is simply a visual encoding of your ISBN that scanners can read at checkout.

You can:

Buy directly from your ISBN provider.
For example, Bowker and Nielsen offer barcode downloads for a small fee.

Use a free barcode generator.
Reliable tools include:

• Bookow Barcode Generator
• ISBN Barcode Generator
• BarcodesInc Generator

When creating your barcode:

• Choose EAN-13 format
• Enter your 13-digit ISBN
• Optionally include a price code (e.g., “90000” if undecided)

The generator will produce a high-resolution PNG or EPS file you can add to your book’s back cover.

Step 5: Place the Barcode on Your Book Cover

Once generated, the barcode must be properly placed during the book design process.

Placement guidelines:

• Location: Bottom right corner of the back cover
• Size: About 2″ wide × 1.2″ tall
• Background: White (for contrast and scan accuracy)
• Resolution: Minimum 300 DPI for print quality

If you’re using a self-publishing platform such as Amazon KDP or IngramSpark, they can automatically add a barcode for you — but only if your ISBN is properly registered.

Step 6: Register Your Book Metadata

An ISBN alone won’t help unless it’s properly registered with complete metadata.

Metadata includes:

• Title and subtitle
• Author and contributors
• Description or synopsis
• Publisher name
• ISBN(s)
• Publication date
• Format and page count
• Price and category

This information helps retailers display your book accurately and improves your visibility in search results on platforms like Amazon, Google Books, and WorldCat.

Common Questions About Getting ISBNs and Barcodes

1. Do self-published authors need an ISBN?

Yes, if you plan to sell your book outside of a single platform.
If you’re using Amazon KDP, they offer a free KDP ISBN, but it will list Amazon as the publisher — not you.
If you want to appear as an independent publisher, buy your own ISBN.

2. Can I reuse an ISBN?

No. Once assigned, an ISBN is permanently tied to that specific edition and format. You can’t reuse or reassign it to another book.

3. Do ebooks need barcodes?

No. Only printed formats (paperback, hardcover) need barcodes. Ebooks use ISBNs for cataloging but are sold digitally without physical barcodes.

4. Can I publish without an ISBN?

Yes, but with limitations. You can distribute on Amazon KDP using their internal identifier (ASIN), but you won’t be able to list your book in libraries or most brick-and-mortar bookstores.

5. How long does it take to get an ISBN?

In most countries, you can get one immediately online (Bowker, Nielsen).
In countries with free government-issued ISBNs (like Canada or India), it can take several days to a few weeks for approval.

Step 7: Upload Your Book to Retailers or Distributors

Once your ISBN and barcode are in place, you’re ready to publish!
Here’s how it works with common platforms:

If you plan wide distribution (including print and ebook), owning your own ISBN gives you full control over your publishing rights and metadata.

Step 8: Maintain Records and Ownership

Always keep your ISBN login credentials, confirmation emails, and barcode files safe.
They represent ownership of your intellectual property.

You can manage or update your ISBN metadata anytime by logging into your ISBN agency’s portal (like Bowker’s “My Identifiers” dashboard).

Benefits of Having Your Own ISBN and Barcode

Owning your own ISBN and barcode gives you:

1. Full publishing control — You’re listed as the official publisher.
2. Global reach — Your book can be sold through multiple retailers.
3. Brand consistency — Your publishing imprint appears across all platforms.
4. Credibility — Bookstores and libraries view ISBN-registered books as professional.
5. Better discoverability — Proper metadata helps your book rank in search engines and catalog databases.

Quick Checklist for Authors

✅ Choose your ISBN provider (Bowker, Nielsen, etc.)
✅ Register your book details
✅ Assign an ISBN to each edition
✅ Generate an EAN-13 barcode
✅ Add the barcode to your book cover
✅ Register complete metadata
✅ Upload to your chosen publishing platform

Final Thoughts

Getting an ISBN and barcode might seem complicated at first, but it’s one of the simplest yet most important steps in professional publishing. Whether you’re self-publishing your debut novel or releasing a business guide, having a properly registered ISBN and barcode ensures your book can be found, sold, and tracked worldwide.

By following the steps in this guide — from choosing your ISBN agency to placing your barcode — you’ll establish your work as a legitimate, market-ready publication.

So now that you know how to get an ISBN and barcode for a book, it’s time to take the final step: claim your ISBN, design your cover, and publish your book to the world.