Elena Castro Books

El Mariachi
El Mariachi

By Elena Castro

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Lo que sale de un huevo
Las Partes De Una Planta
Lots of hats Pinata
Lots of hats Pinata

By Elena Castro

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Brinca la tablita
Brinca la tablita

By Elena Castro

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Ay caramba
Ay caramba

By Elena Castro

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Five silly sheep farmers get tangled up. Who will help them?

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Es mejor dar que recibir
Es mejor dar que recibir

By Elena Castro

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Barbara learns it's better to give than to receive.

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Toconayo
Toconayo

By Elena Castro

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Can you think of all the things corn is used for?

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Las mariposas de Alicia
Las mariposas de Alicia

By Elena Castro

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Alicia is embroidering a lovely panel, but she needs one more thing to finish it.

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En Busca De Insectos

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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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