John Joseph Velez Books

Art Contemporani de la Generalitat Valenciana IV

By Noelia Camacho, Cristina Martinez, Irene Ballester, Joan Carles Marti, Juan Antonio Gallart, Alvaro De Los Angeles, Isabel Tejeda, Manuel Garrido, Laura Garces, Miquel Hernandis, Maria Marco, Begona Jorques, Silvia Zarza, Alvaro G. Devis, Pilar Tebar, Carmen Velasco, Rosalia Torrent, Ricard Silvestre, Marisol Salanova, Johana Caplliure, Aida Antonino, Rosa Castells, Irene Gras, Alex Ladron De Guevara, Carla Melchor, Roman De La Calle, Silvia Tena, Daniel Terol, Josep Montesinos, Salva Torres, Nuria Llopis, Rafael Gil, Eric Gras, John Joseph Velez, Ester Alba, Cultura I Esport Servei D Acreditacio I Assessorament De La Conselleria D Educacio, Amparo Zacares, Paloma Palau, Diana Guijarro

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Emergency on Planet Earth

By Serveis Lingistics I Editorials, Victoria Rios Pico, Anna Pons Frigols, Jose Luis Perez Pont, Serafin Huertas Alcala, John Joseph Velez, Vinz Feel Free

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Santas de Zurbaran

By Benito Navarrete Prieto, John Joseph Velez

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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.