Gigi Griffis Books

Fodor s Cancun the Riviera Maya

By Gigi Griffis

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La emperatriz

By Gigi Griffis, Beatriz Villena Sanchez

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L emperadriu

By Esther Roig Gimenez, Gigi Griffis

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The Wicked Unseen

By Gigi Griffis

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The new girl in town is having trouble fitting into a community that believes there’s a secret Satanic cult conducting rituals in the woods. When her crush goes missing, she starts to wonder...

We Are the Beasts

By Gigi Griffis

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Deaths and disappearances pile up as a mysterious beast stalks the French countryside and two girls seize an unlikely opportunity that just might save them all—or serve them up on a platter.S...

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.