Dave Duncan Books

Speak to the devil

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Anton, an ambitious young knight, and Wulfgang, an amiable teenager who hears Voices that may belong to the devil or saints (depending on who tells the tale), join Cardinal Zdenek's forces with the...

The Alchemist s Pursuit

By Dave Duncan

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The Alchemist's Pursuit

By Dave Duncan

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The Alchemist's Pursuit

By Dave Duncan

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Hampered by arthritis, Nostradamus is in no mood for granting favors or running about looking for trouble. But when his apprentice Alfeo's mistress asks him to investigate the murder of her beloved...

Future Indefinite

By Dave Duncan

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Rose Red City

By Dave Duncan

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Stricken Field

By Dave Duncan

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West of January

By Dave Duncan

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Upland Outlaws

By Dave Duncan

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Reaver Road

By Dave Duncan

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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.