Angus Donald Books

Holy Warrior: A Novel of Robin Hood

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May 1194. Finally released from captivity, Richard the Lionheart is in Normandy engaged in a bloody war to drive the French out of his continental patrimony. By his side in this epic struggle are R...

Grail Knight

By Angus Donald

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When past crimes resurface, Sir Alan Dale, loyal lieutenant of the Earl of Locksley faces terrible vengeance at the hands of those that he and his master have wronged. With his beloved wife on her...

Holy Warrior

By Angus Donald

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King s man

By Angus Donald

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The third crusade is over. Richard the Lionheart is bound for England. But with all the princes of Europe united against him ... can the greatest warrior in Christendom make it safely home? The lio...

Warlord

By Angus Donald

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May 1194. Finally released from captivity, Richard the Lionheart is in Normandy engaged in a bloody war to drive the French out of his continental patrimony. Using the brutal tactics of medieval wa...

Grail Knight

By Angus Donald

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When past crimes resurface, Sir Alan Dale, loyal lieutenant of the Earl of Locksley faces terrible vengeance at the hands of those that he and his master have wronged. With his beloved wife on her...

The Iron Castle Outlaw Chronicles

By Angus Donald

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The King s Assassin

By Angus Donald

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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.