Jean Marc Leger Books

Cracking the Quebec code

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Most Quebecers come from a French culture, live in an English society and have an American lifestyle. Who are Quebecers exactly? What do they want? What are their aspirations? This book paints a su...

Vers l'independance?

By Jean Marc Leger

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Le Code Quebec

By Pierre Duhamel, Jean Marc Leger, Jacques Nantel

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La francophonie

By Jean Marc Leger

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Le Quebec en question

By Jean Marc Leger

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Synthèse des données recueillies dans les sondages, accompagnée de tableaux. Neuf thèmes : l'amour, le travail, les loisirs, l'argent, la morale, la santé, le pouvoir, la famille, la culture.

Le temps dissipe

By Jean Marc Leger

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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.