Ricardo Calleja Books

Vivir como si Dios existiera

By Ediciones Encuentro, Joseph Ratzinger Benedicto XVI, Ricardo Calleja

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Comunicacion politica

By Gonzalo Guzman, Rafael Rubio Nunez, Ismael Crespo, Alana Moceri, Carlos Sotelo Enriquez, Daniel Urena, Cristina Moreno Sieira, Roberto Losada, Eduardo Baeza Perez Fontan, Ruben Sanchez Medero, Xavier Peytibi, Eva Pujadas Capdevila, Roberto Rodriguez Andres, Eduardo Suarez, Monica Mendez Lago, Joan Navarro, Javier Lorenzo Rodriguez, Antoni Gutierrez Rubi, Maria Ramirez, Ricardo Calleja

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Atenas y Jerusalen Politica filosofia y religion desde 1945

By Diego Sebastian Garrocho Salcedo, Noel O Sullivan, Jose Maria Carabante Muntada, Jorge Del Palacio Martin, Armando Zerolo Duran, Javier Gil Guerrero, Angel Jorge Barahona Plaza, Giovanni Orsina, Adriaan Kuhn, Joseba Louzao Villar, Jose Luis Lopez Y Lopez De Lizaga, Paloma De La Nuez Sanchez Cascado, Ferran Caballero Puig, Oscar Elia Manu, Juan Tovar Ruiz, Anna Piazza, Carlo Altini, Rafael Ramis Barcelo, Jose Maria Marco, Miguel Angel Quintana Paz, Guillermo Graino Ferrer, Valentina Gentile, Camil Ungureanu, Luca Demontis, Ricardo Calleja

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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.