Lemay Michel. Books

Le Diagnostic en psychiatrie infantile

By Lemay Michel.

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L' eclosion psychique de l'etre humain

By Lemay Michel.

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"Etude comparée sur les recherches de langues anglaise et française autour de la naissance du sentiment d'identité", de la vie foetale à l'âge de cinq ans. Essai de synthèse et d'analyse critiques.

L' autisme aujourd'hui

By Lemay Michel.

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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.