Ana Crespo Books

Spatio temporal narratives
El conde de Montecristo
El conde de Montecristo

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La casa de Bernarda Alba
La casa de Bernarda Alba

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Lia y Luis: ?Quien Tiene Mas? Lia & Luis: Who Has More?
Lia y Luis: ?Quien Tiene Mas? Lia & Luis: Who Has More?

By Ana Crespo Author Giovana Medeiros Illustrator

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¡Celebremos la diversidad, las matemáticas y el poder del cuento! Celebrate diversity, math, and the power of storytelling!¡Ahora en edición bilingüe ingl&eacute...

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Lia y Luis: !Desconcertados! Lia & Luis: Puzzled!
Lia y Luis: !Desconcertados! Lia & Luis: Puzzled!

By Ana Crespo Author Giovana Medeiros Illustrator

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¡Celebra la diversidad, las matemáticas y el poder de contar historias con esta edición bilingüe (español e inglés)!Celebrate diversity, math, and the power o...

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Lia & Luis: Who Has More?
Lia & Luis: Who Has More?

By Ana Crespo Author Giovana Medeiros Illustrator

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Celebrate diversity, math, and the power of storytelling!Twins Lia and Luís argue over who has more of their favorite snacks. Can the siblings use math--and a little sharing--to pick the win...

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Lia & Luis: Puzzled!
Lia & Luis: Puzzled!

By Ana Crespo Author Giovana Medeiros Illustrator

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Celebrate diversity, math, and the power of storytelling!Twins Lia and Luís have received a secret puzzle from their grandma! Can they put it together to read the hidden message? A playful e...

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Related Articles from our Blog

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.

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