John Walkenbach Books

Excel 2000 et VBA

By John Walkenbach

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Programmation VBA pour Excel 2013 et 2016 Pour les Nuls

By John Walkenbach

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Formules et fonctions Excel 2000

By John Walkenbach

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Formules et fonctions d Excel 2002

By John Walkenbach

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Graphiques Excel

By John Walkenbach

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Après une présentation très complète des bases nécessaires pour se lancer, l'auteur fait découvrir d'incroyables possibilités à l'aide d'exemples : graphiques combinés, graphiques 3D, graphiques de...

Programmation VBA pour Excel pour les nuls

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Office 2000 Fur Dummies

By Greg Harvey

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Excel 2010 para dummies guia rapida

By Colin Banfield

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A reference guide explains how to use the diverse features of the spreadsheet program, discussing such topics as Excel basics, worksheet design, formulas and functions, charts and graphics, data ma...

Excel 2007 bao dian

By John Walkenbach

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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.