Vincent O Hara Books

On Seas Contested
Battleship Tirpitz
Battleship Tirpitz

By Vincent O Hara

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Heavy Cruiser Prinz Eugen
Heavy Cruiser Prinz Eugen

By Vincent O Hara

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Torch
Torch

By Vincent O Hara

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Torch
Torch

By Vincent O Hara

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Six Victories
Six Victories

By Vincent O Hara

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Clash of Fleets
Battleship Massachusetts
Battleship Massachusetts

By Vincent O Hara

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To Crown the Waves
Innovating Victory

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If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.

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