Rachel A. Koestler Grack Books

The Department of Homeland Security

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Discusses why and how the Department of Homeland Security was created and the measures taken by the Department to prevent terrorist attacks within the United States.

Kirby Puckett Baseball Superstars

By Rachel A. Koestler Grack

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Queen Latifah Hip Hop Stars

By Rachel A. Koestler Grack

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Tom Brady Football Superstars

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Brett Favre Football Superstars

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Queen Latifah

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The Johnstown Flood of 1889 Great Historic Disasters

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Scoundrels of the Sea Pirates and Privateers

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Chief John Ross

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Chief Joseph

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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.