Raphaël Fejto Books

The toilet

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The Romans had public toilets that removed human waste to the river but 1,000 years later people went back to throwing their waste into the street! The Queen of England was desperate to get rid of...

French fries

By Raphael Fejto

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In 1828, a young French cook learned how to make the chef's specialty, round sliced potatoes fried in grease until crispy. He thought they were so good, he decided to sell them on the street. They...

Gina et le lion

By Raphael Fejto

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Thématique : peinture - humour - fantaisie - art.

Je suis la lune

By Raphael Fejto

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Je suis le soleil

By Raphael Fejto

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Prince Igor

By Raphael Fejto

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Je suis la neige

By Raphael Fejto

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Le Velo de Jo

By Raphael Fejto

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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.