Juan Trejo Books

La barrera del sonido
La barrera del sonido

By Juan Trejo

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"El narrador de esta novela, un personaje sospechosamente parecido al autor, necesita bucear, como si de un paciente arqueólogo se tratara, en los hechos más significativos de su pasado, tras un ep...

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El fin de la guerra fria
El fin de la guerra fria

By Juan Trejo

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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.

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