Christina Gonzalez Books

Inca civilization

By Christina Gonzalez, Cristina Gonzalez

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Highlights the cultural achievements, both material and spiritual, of the ancient Incas.

Inca Civilization The World Heritage

By Christina Gonzalez

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Remember Africa

By C.F. Gonzalez

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The Red Umbrella

By Christina Diaz Gonzalez

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The Red Umbrella is a moving tale of a 14-year-old girl's journey from Cuba to America as part of Operation Pedro Pan—an organized exodus of more than 14,000 unaccompanied children, whose parents s...

The Red Umbrella

By Christina Diaz Gonzalez

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The red umbrella

By Christina Diaz Gonzalez

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In 1961 after Castro has come to power in Cuba, fourteen-year-old Lucia and her seven-year-old brother are sent to the United States when her parents, who are not in favor of the new regime, fear t...

The red umbrella

By Christina Diaz Gonzalez

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A Woman Loved

By Christina Gonzalez

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What I Say

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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.