William Osborne Books

Hitler s angel

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Otto and Leni have escaped to England from Nazi Germany. They thought they were safe, but now the British want them to go back. Dropped behind enemy lines, they embark on a secret operation codenam...

Hitler s Angel

By William Osborne

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Winter's bullet

By William Osborne

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Tygo, a locksmith's son, is forced by the Nazis to loot abandoned Dutch homes for valuables. Known as 'the Ferret', he's despised by everyone, but it's the only way he can keep his family alive. Bu...

Winters Bullet

By William Osborne

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Hitler in Melegi

By William Osborne

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Oorlogskinderen

By William Osborne

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Een jongen en een meisje zijn tijdens de Tweede Wereldoorlog Duitsland ontvlucht. Van de Engelse spionagedienst krijgen ze een geheime opdracht: een Duits meisje uit een klooster in Duitsland wegha...

Red Mouse

By William Osborne

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Red Mouse

By William Osborne

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Red Mouse

By William Osborne

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Collateral Damage

By William Osborne, Jan Herman

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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.