Kelley Armstrong Books

The Masked Truth

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Now in paperback, the new heart-stopping suspense thriller from #1New York Times bestselling author Kelley Armstrong.Riley Vasquez is haunted by the brutal murder of the couple she was babysitting...

Aftermath

By Kelley Armstrong

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This Fallen Prey

By Kelley Armstrong

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Alone in the Wild

By Kelley Armstrong

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Bitten

By Kelley Armstrong

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FROM THE AUTHOR OF HEMLOCK ISLAND--THE FIRST NOVEL IN THE #1 NEW YORK TIMES BESTSELLING OTHERWORLD SERIES “Frisky...Tells a rather sweet love story, and suggests that being a wolf may be more comfo...

Stolen

By Kelley Armstrong

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Bitten

By Kelley Armstrong

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Stolen

By Kelley Armstrong

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From the author of Hemlock Island--the second novel in the #1 New York Times bestselling Otherworld series.Elena Michaels is back—and she has company. When a young witch tells Elena that a group o...

Stolen

By Kelley Armstrong

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Waking the Witch

By Kelley Armstrong

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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.