Loretta Lopez Books

Que Sorpresa de Cumpleanos

By Loretta Lopez

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Pipo, El Puma

By CLARITA KOHEN

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Say Hola to Spanish

By Loretta Lopez, Susan Middleton Elya

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Que Sorpresa De Cumpleanos Birthday Swap

By Loretta Lopez

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The birthday swap

By Loretta Lopez

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A five-year-old Mexican American girl who will not be six until December is very surprised and has a great deal to celebrate when her sister swaps birthdays with her in the summer.

Que sorpresa de cumpleanos!

By Loretta Lopez

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A five-year-old Mexican American girl who will not be six until December has a great deal to celebrate when her sister swaps birthdays with her in the summer.

The Birthday Swap

By Loretta Lopez

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I Remember Abuelito

By Janice Levy, Loretta Lopez

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I Remember Abuelito

By Janice Levy, Loretta Lopez

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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.