Jean-Jacques Greif Books

The fighter

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Moshe Wisniak, a poor Polish Jew, uses his physical strength and cleverness, plus luck, to help him survive the horrors he is subjected to in the concentration camps of World War II. Based on the...

Mes enfants c est la guerre

By Jean Jacques Greif

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Nine eleven

By Jean Jacques Greif

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Au pied des tours jumelles de Manhattan, la journée du 11 septembre 2001 a commencé comme une journée ordinaire.

Einstein

By Jean Jacques Greif

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S Nine Eleven

By Jean Jacques Greif

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Fighter

By Jean Jacques Greif

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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.