Dirk Gringhuis Books

The Boxcar Children 5

By Gertrude Chandler Warner

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Mystery Ranch

By Gertrude Chandler Warner

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The Aldens spend the summer on their Aunt's ranch! The ranch is a beautiful place, but it's also the source of trouble between Aunt Jane and Grandfather. As the Boxcar Children explore the land, th...

Lore of the Great Turtle

By Richard H. Gringhuis, Dirk Gringhuis

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Were Wolves and Will O The Wisps Ohio

By Dirk Gringhuis

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Lore of the Great Turtle

By Dirk Gringhuis

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Let s color Michigan

By Dirk Gringhuis

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Michigan s Indians

By Dirk Gringhuis

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The Young Voyageur Mackinac Island Historic Parks

By Dirk Gringhuis

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MacKinac History

By Dirk Gringhuis

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Mystery Ranch

By Dirk Gringhuis, Gertrude Chandler Warner

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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.