Christian Quennehen Books

Dealing with Dad

By Joseph Perigot, N. B. Grace, Christian Quennehen

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Written to help teens and preteens understand how their relationship with their dads is changing and how they can both get on the road to better communication.

Un pere c est pour la vie

By Joseph Perigot, Christian Quennehen

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Je suis trop timide...

By Claude Clement, Christian Quennehen

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Mon papa a moi

By Christian Quennehen

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Comment le petit Paul vit-il sa vie de famille? C'est ce qu'explique cet album qui est centré sur la figure paternelle. Une anecdote par album pour les petits et les grands.

Voyage dans les glaces

By Janot Lamberton, Luc Moreau, Christian Quennehen, Philippe Bourseiller, Alain Coute

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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.