Guillermo Rosales Books

Leapfrog and other stories

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Leapfrog depicts one summer in the life of a very poor young boy in post-revolutionary Havana in the late '50s. He has superhero fantasies, hangs around with the neighborhood kids, smokes cigarette...

El Juego De LA Viola

By Guillermo Rosales, Giullermo Rosales

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Felaketzedeler Evi

By Guillermo Rosales

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Letras De Oro Boarding Home

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Boarding Home

By Guillermo Rosales

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La casa de los naufragos

By Guillermo Rosales

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The halfway house

By Guillermo Rosales

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Leapfrog

By Guillermo Rosales, Anna Kushner

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Mon ange

By Guillermo Rosales, Liliane Hasson

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Bording hom Bet ha terufim

By Guillermo Rosales

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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.