Julia Mercedes Castilla Books

Emilio

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As they prepare to make the traditional Christmas cookies known as bizcochitos, Christina's grandmother tells her the story of how a magical butterfly first introduced these sweet treats to her gre...

Benito's bizcochitos

By Ana Baca

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Family Familia

By Julia Mercedes Castilla, Diane Gonzales Bertrand

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A reluctant participant in the González family reunion, Daniel has some pleasant surprises and discovers the meaning of family.

Family

By Diane Gonzales Bertrand

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A reluctant participant in the González family reunion, Daniel has some pleasant surprises and discovers the meaning of family.

Emilio

By Julia Mercedes Castilla

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A young immigrant from Central America finds it difficult to learn English and adjust to life in the big city of Houston, Texas.

Magda s Tortillas Las Tortillas De Magda

By Becky Chavarria Chairez, Julia Mercedes Castilla

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Uncle Chente's picnic

By Diane Gonzales Bertrand

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A big rainstorm and a power failure during a Fourth of July picnic in honor of Uncle Chente cause a change in plans, resulting in a very special family gathering.

Pirinolo

By Julia Mercedes Castilla

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Aventuras de Un Nino de la Calle

By Julia Mercedes Castilla, Francois Charles, Daniel Garcia

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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.