Celine Kiernan Books

The Snow Globe: Beyond the Stars

By Marita Conlon McKenna, P. J. Lynch

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The Rebel Prince Book 3 Of The Moorehawke Trilogy

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Into the Grey

By Celine Kiernan

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In a heart-pounding, atmospheric ghost story, a teenage boy must find the resources within himself to save his haunted twin brother.After their nan accidentally burns their home down, twin brothers...

The Little Grey Girl

By Celine Kiernan

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In the second book of the Wild Magic trilogy, courageous young Mup and her family are trying to heal and restore the kingdom when they uncover an ancient and powerful anger.The old queen and her ra...

The Poison Throne

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The Crowded Shadows

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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.