Christian Havard Books

Les animaux sont présentés par doubles pages avec chaque fois une grande illustration principale et 2 ou 3 vignettes illustrant des comportements, complétées par la présentation d'animaux de la mêm...

Tous les chiens du monde

By Agences Bios Phone, Christian Havard

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Le Loup

By Christian Havard

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Le renard

By Christian Havard

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Une description détaillée de la vie du renard dans son univers quotidien : la chasse, la reproduction, etc.

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.