David Goodwin Books

Ghosts of Jefferson Barracks

By David Goodwin

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THE AQUARIUM FISH HAND BOOK

By DAVID GOODWIN

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The aquarium fish handbook

By Goodwin David Writer On Aquarium Fish

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"A comprehensive guide to over 200 aquarium fish--including their origins, size, requirements, characteristics and care. The aquarium fish handbook also contains practical advice on setting up and...

The tropical fish handbook

By Goodwin David Writer On Politics

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La bible des poissons d aquarium

By David Goodwin

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God in Life

By David Goodwin, Mark Tronson, Rebecca Moore

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Servo

By David Goodwin

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Operation Redstar

By David Goodwin

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Holy Pussy

By David Goodwin

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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.