Rafael Trelles Books

Santurce

By Rafael Trelles, Francisco Font Acevedo

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'Santurce, a mural book', is a pictorial-narrative urban intervention project created by the writer Francisco Font-Acevedo and the painter Rafael Trelles in collaboration with the Museum of Contemp...

El pez en llamas

By Rafael Trelles

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Metamorfosis

By Rafael Trelles

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Aby Ruiz

By Carlos Ortiz Burgos, Rafael Trelles, Laura Galban, Elsa Maria Melendez

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Andres Rodriguez Santos Vuelo Raso Flying Low

By Rafael Trelles, Laura Galban, Laura Bravo Lopez

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Antologia Poetica 1978 2017

By Pablo Figueroa Cordero, Rafael Trelles, Laura Perez Munoz, Servando Echeandia Colon

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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.