Karen Harbaugh Books

The Vampire Viscount and the Devil s Bargain

By Karen Harbaugh

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Elizabeth s Rake Cupid s Mistake

By Emily Hendrickson, Karen Harbaugh

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Dragon Lovers Signet Eclipse

By Mary Jo Putney, Jo Beverley, Karen Harbaugh, Barbara Samuel

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Night Fires: A Novel

By Karen Harbaugh

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Enter a midnight world of dark seduction and unquenchable desire, of sinful pleasure and breathtaking intrigue—where amid the flames of war and the immortal thirst of two irresistible lovers, an al...

Night fires

By Karen Harbaugh

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Dark Enchantment Book Club Edition Hardcover

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Faery Magic

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Cupid s Mistake

By Karen Harbaugh

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Midnight Surrender

By Karen Harbaugh

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Night Fires

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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.