Javier Sierra Books

La Espana extrana

By Jesus Callejo Cabo, Javier Sierra

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Roswell

By Javier Sierra

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Fray Agustín Leyre, inquisidor dominico, es enviado a Milán para supervisar los trazos finales que Leonardo da Vinci da a ''La Última Cena''. La causa son unas cartas anónimas recibidas por el papa...

En busca de la Edad de Oro

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La dama azul

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El foc invisible

By Javier Sierra, Josep Pelfort

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El missatge de Pandora

By Javier Sierra, Nuria Garcia Caldes, Merce Ubach Dorca

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La dama azul

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L angel perdut

By Javier Sierra

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El Sopar Secret

By Javier Sierra

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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.