Kristen Callihan Books

Moonglow

By Kristen Callihan

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Winterblaze

By Kristen Callihan

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Soulbound

By Kristen Callihan

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When Adam's soul mate rejected him, there was more at stake than his heart. After seven hundred years of searching, his true match would have ended the curse that keeps his spirit in chains. But be...

Exposed

By Kristen Callihan

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Exposed

By Kristen Callihan

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Evernight

By Kristen Callihan

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Will Thorne is living a nightmare, his sanity slowly being drained away by a force he can't control. His talents have made him the perfect assassin for hire. But as he loses his grip on reality, th...

Soulbound

By Kristen Callihan

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"When Adam's soul mate rejected him, there was more at stake than his heart. After seven hundred years of searching, his true match would have ended the curse that keeps his spirit in chains. But b...

Forevermore

By Kristen Callihan

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Sin Evernight is an angel of vengeance, hunting down the darkest evil, until his long-lost friend Layla Starling needs him. Now a famous singer and the toast of London, Layla believes Sin is only w...

The Friend Zone

By Kristen Callihan

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The Game Plan

By Kristen Callihan

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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.