Jen Williams Books

The Copper Promise The Copper Cat Book 1

By Jen Williams

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The Iron Ghost The Copper Cat Book 2

By Jen Williams

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Copper Promise

By Jennifer Williams

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The Copper Promise The Copper Cat 1

By Jen Williams

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There are some tall stories about the caverns beneath the Citadel - about magic and mages and monsters and gods. Wydrin of Crosshaven has heard them all, but she's spent long enough trawling cavern...

The Silver Tide

By Howard Hughes

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The Silver Tide Copper Cat Trilogy

By Jen Williams Author

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The Ninth Rain The Winnowing Flame Trilogy 1

By Jen Williams

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Games for Dead Girls

By Jen Williams, Mhairi Morrison

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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.