André Martens Books

10-minute hairstyles

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Create 50 gorgeous hairstyles, from casual braids to the elegant beehive, by Berlin-based top stylist Andre Martens. Following the visual step-by-step instructions by a top stylist, it is really ea...

10 minute hairstyles

By Martens Andre Hairdresser

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La politique economique du developpement et les modeles d equilibre general et calculable

By Bernard Decalume, Andre Martens, Luc Savard

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Cadre comptable macroeconomique et les pays en developpement

By Andre Martens

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L' economie des pays arabes

By Andre Martens

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Le cadre comptable macroeconomique et les pays en developpement

By Andre Martens

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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.