David Gemmell Books

The ruined city of Kuan Hador reeks of dark mystery. Shunned by brigands and merchants alike, it is home to fearsome wild things and legends that freeze the blood--tales that speak of slavering whi...

Last Sword of Power

By David A. Gemmell

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BLOOD KINGThe Goths followed a bloodthirsty new leader, one who sought to open the Gates of Hell: Wotan. His immortal power stemmed from human sacrifice and dark sorcery, and no sword could touch h...

Ghost King

By David A. Gemmell, David Gemmell

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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.