Reina Roffe Books

Conversaciones Americanas American Conversations Voces Ensayo

By Reina Roffe, Jorge Luis Borges, Adolfo Bioy Casares, Mario Benedetti, Alfredo Bryce Echenique

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Interviews with notable Spanish American authors.

El Cielo dividido

By Reina Roffe

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"Esta novela, muy bien narrada, trata una problemática actual - la identidad relacionada con varios temas que la definen y modifican: la sexualidad, el lugar donde se vive y las relaciones con los...

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.