Sofia Guadarrama Collado Books

La revelacion del aguila

By Sofia Guadarrama Collado

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La nota roja

By Sofia Guadarrama Collado

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"Jean Paul Sanz recorre la ciudad de México en busca de la noticia que aparecerá en la primera plana del periódico La Nota Roja. Todos los días este reportero se enfrenta con historias donde la cor...

La senda del jaguar

By Sofia Guadarrama Collado

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El eje narrativo de esta novela es la estremecedora historia del naufrago espanol Gonzalo Guerrero, quien se integro a la cultura maya y se convirtio en uno de los principales adversarios de los co...

Tezozomoc, el tirano olvidado

By Sofia Guadarrama Collado

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"Siguiendo la tradicion de los tlacuilos, historiadores que rescataron en codices los capitulos mas remotos de la historia de los grandes imperios de Mesoamerica, llega la vida de Tezozomoc, un hom...

Tezozomoc el tirano olvidado

By Sofia Guadarrama Collado

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Tezozomoc

By Sofia Guadarrama Collado

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Nezahualcoyotl

By Sofia Guadarrama Collado

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Tlatoque. nbsp Somos Mexicas We Are Mexica

By Sofia Guadarrama Collado

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Balam la Senda Del Jaguar Balam

By Sofia Guadarrama Collado

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Cuauhtli la Revelacion Del aguila Cuauhtli

By Sofia Guadarrama Collado

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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.