Alejandra Longo Books

Stars In The Sky: Grandma's Rhymes (estrellas En El Cielo: Los Versos De La Abuela) (Stars In The Sky)

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Verses for children about animals, stars, angles, flowers and other things. Versos para niños sobre animales, estrellas, ángeles, flores y otras cosas.

Aserrin Aserran Grandmother s Songs aserrin Aserran Las Canciones De La Abuela

By Alejandra Longo

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Trabalenguas

By Alejandra Longo

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An illustrated collection of riddles and tongue twisters in Spanish.

Adivinanzas que Tiene El Rey En La Panza

By Alejandra Longo

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Fabulas

By Alejandra Longo

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Several familiar fables retold in Spanish.

Refranes

By Alejandra Longo

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En El Cielo Las Estrellas

By Alejandra Longo

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Trabalenguas

By Alejandra Longo

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An illustrated collection of riddles and tongue twisters in Spanish.

Esta soy yo

By Alejandra Longo

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Yo solito All By Myself

By Alejandra Longo

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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.