Carlos Lapena Moron Books

Perla

By Fernando Ferro Payero, Eugenio Ayllon Ronco, Raquel Fernandez Saez, Carlos Lapena Moron

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La tristeza de Maria

By Carlos Lapena Moron

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Maria is very sad and no one knows why. It takes the combined efforts of the fairy of the north, the dwarf of the south, the witch of the west and the genie of the east to make Maria happy again.

Rima rimando

By Antonio Santos Lloro, Carlos Lapena Moron

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Vida Sompata

By Carlos Lapena Moron

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LIJ

By Xavier Frias Conde, Carlos Lapena Moron

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El extraordinario caso de la oveja Pepa

By Carlos Lapena Moron

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Sobre la Musa Dos Tizas 2o Cuaderno de Ratos

By Eugenio Ayllon Ronco, Carlos Lapena Moron

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Aventuras Sompatas

By Carlos Lapena Moron

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Tras Los Pasos Del Leon y la Leona

By Xavier Frias Conde, Carlos Lapena Moron

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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.