Guy Walters Books

At the end of World War II, an estimated 30,000 Nazi war criminals fled from justice, including some of the highest ranking members of the Nazi Party. In this exhaustively researched work of histor...

La traque du mal

By Guy Walters

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Enquête sur le destin des criminels de guerre nazis après la Seconde Guerre mondiale, leurs lieux d'exil, leurs contacts avec différents services secrets, l'aide qu'ils ont obtenue, la chasse dont...

Berlin Games

By Guy Walters

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Berlin Games

By Guy Walters

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

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.