David Carvalho Martins Books

Compatibilidad de prestaciones de Seguridad Social con trabajo

By Djamil Tony Kahale Carrillo, David Carvalho Martins, Ma Belen Fernandez Collados, Rodrigo Martin Jimenez, Fco. Javier Fernandez Orrico, Francisco Antonio Gonzalez Diaz, Gianni Loy, Guillermo Rodriguez Iniesta, Carmen Sanchez Trigueros

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Da transmissao da unidade economica no direito individual do trabalho

By David Carvalho Martins

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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.