George Guthridge Books

Child of the Light

By George Guthridge, Gluckman

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DEATH MASK PANCHO Time Machine No 19

By George Guthridge, Carol Gaskin

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The Kids from Nowhere

By George Guthridge

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An award-winning writer delivers the inspiring, true story of Alaskan Eskimo students who, despite lacking world knowledge and speaking English as a second language, manage to achieve great educati...

Child of the Light

By Janet Berliner, George Guthridge

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Children of the Dusk Madagascar Manifesto Trilogy

By Janet Berliner, George Guthridge

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The Bloodletter

By George Guthridge

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The Madagascar Manifesto

By Janet Berliner, George Guthridge

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Winter Walk

By George Guthridge

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Children of the Dusk Madagascar Trilogy

By Janet Berliner, George Guthridge

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A3

By George Guthridge

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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.