Catharina Valckx Books

Totoche et la petite maison de meredith

By Catharina VALCKX CATHARINA

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Ma collection

By Catharina Valckx

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TOTOCHE et la petite maison de meredith

By Valckx Catharina

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By Catharina Valckx

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Le papa de Billy se désole. Son fils ne deviendra pas un supergangster. Mais lorsque Billy reçoit sa première leçon de bandit et part s'exercer avec un revolver pas chargé, son père ne s'imagine pa...

Carlo

By Catharina Valckx

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Gnouf, un cochon, apprend à Carlo, un canard, qu'il sera maintenant la vedette d'une histoire portant sur sa personne. Perplexe, le canard se demande bien quoi faire pour intéresser son public. Heu...

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MANU ET NONO T1 LE DERNIER GATEAU

By Catharina Valckx

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Cheval fou

By Catharina Valckx

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JO LE TRES VILAIN PETIT CANARD les lutins

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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.