Valerie Tracqui Books

My home is the polar regions

By Valerie Tracqui

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A board book presenting ten animals that live in the polar regions.

Le poney, tendre coquin

By Valerie Tracqui

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Une documentation sommaire, structurée, rehaussée d'excellentes photographies. [SDM].

Le crocodile terreur du fleuve

By Valerie Tracqui

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Le comportement et les aspects physiques de cet animal le plus impressionnant de la planète, que l'on voit dans les eaux troubles du fleuve.

En foret

By Valerie Tracqui

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Un guide à emporter lorsque l'on veut partir en balade avec les enfants et qui comporte des conseils pratiques, des idées d'activités et des planches d'identification pour reconnaître les plantes,...

L Ours blanc seigneur de la banquise

By Valerie Tracqui

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Une documentation sommaire, structurée, rehaussée de photographies exceptionnelles.

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.