Javier Leon Herrera Books

Luis Miguel: La historia Luis Miguel: The Story

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Amado en Argentina, Colombia, Estados Unidos, Chile, España, Italia… Luis Miguel es el artista más admirado y al mismo tiempo más desconocido en cuanto a su vida privada...

Adios eterno

By Javier Leon Herrera

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¿Presentía su muerte Juan Gabriel? ¿Qué fue lo que realmente lo mató? ¿Qué dolores profundos encerraba en su corazón, qué angustias, qué amores? El 28 de agosto de 2016 murió en Santa Mónica, Calif...

Hombres G: Nunca hemos sido los guapos del barrio Hombres G: We've never been the cute guys on the block

By Javier Leon Herrera

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«En este libro nos hemos desnudado como nunca antes lo habíamos hecho.»David, Dani, Javi, Rafa (Hombres G)La primera&#...

Hombres G

By Javier Leon Herrera

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La bella y el narco

By Javier Leon Herrera

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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.