Geoffrey Molloy Books

Es facil dejar de fumar si sabes como

By Rhea Sivi, Geoffrey Molloy, Allen Carr

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Cero, cero: Las siete verdades sobre el alcohol que cambiaran tu vida para siemp re Zero, Zero

By Geoffrey Molloy

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Si tu respuesta es «lo normal», este libro es para ti. El alcohol es la droga que más se consume en nuestra sociedad: una pandemia silenciosa que afecta a millones de personas....

Why Did You Start Smoking Again

By Geoffrey Molloy

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Como dejo de dejar de Fumar

By Geoffrey Molloy

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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.