Klaus Kordon Books

The BIG FISH

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When they save a big fish on the beach and are granted their wish to have a child, a fisherman and his wife discover that skin color is not so important.

Brothers like friends

By Klaus Kordon

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Chronicles the friendship between two brothers living in Berlin, Germany, in 1950.

Writers continued to resist the Nazi Kastner ISBN

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Je t ecris de Berlin

By Klaus Kordon, Marc Lacaze

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Ce cher monsieur Dieu

By Klaus Kordon, Jeanne Etore

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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.