Jackie Castle Books

My Wayfaring Billionaire

By Jackie Castle

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Illuminated

By Jackie Castle

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Ignited

By J.R. Castle, Jackie Castle

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My Beastly Billionaire

By Jackie Castle

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Twelve years ago, on the Islands of Alariss, General Vayn gained power in a military coup after the emperor and empress had "a tragic accident". The Dragon Knights, an elite force loyal to the empe...

Silver and Light

By J. R. Castle, Jackie Castle

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Season s End

By Jackie Castle

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My Charming Billionaire

By Jackie Castle

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Coloring Book and Journal for the Inspired Adult Coloring Journaling Book Stress Relieving Designs Animals Mandalas Flowers Patterns and So Much More

By Jackie Castle, Castle Book Creations

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Through the Portal

By Jackie Castle

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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.