Bruce R. Cordell Books

Deep within the heart of Stardeep, valiant warriors protect the innocents around them from the horrors and madness confined within the fortress, but evil may escape when the only key to the dungeon...

The sinister spire

By Bruce R. Cordell, Ari Marmell

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Ruins of the Wild

By Bruce R. Cordell

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Plague of spells

By Bruce R. Cordell

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"Raidon Kane emerges from the Spellplague with a sapphire tattoo burned into his flesh, strange supernatural powers, and eleven missing years. His daughter is dead. His home has been destroyed. His...

Assault on Nightwyrm Fortress

By Bruce R. Cordell

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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.