Harry Patterson Books

The Sad Wind from the Sea

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After her brothers are killed one by one, Kate Rashid swears vengeance on all who have harmed her family. Never mind that they tried to assassinate the President of the United States or that villai...

Hell is always today.

By Harry Patterson

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To Catch a King

By Harry Patterson

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Dillinger

By Harry Patterson

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The Valhalla Exchange

By Harry Patterson

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The Graveyard Shift

By Harry Patterson

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Cry of the Hunter

By Jack Higgins, Harry Patterson

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Comes the Dark Stranger

By Jack Higgins, Harry Patterson

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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.