Daniel A. Willis Books

The Descendants Of Louis Xiii

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Louis Xiii, King Of France And Navarre (1601-1643) Was The Son Of Henri Iv, King Of France And Maria De Medici. His Descendants Included Nobility Of The Former Austro-hungarian Empire, Belgium, Bra...

The Descendants Of King George I Of Great Britain

By Daniel Willis, Daniel A. Willis

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A Reference Guide To The Royal Families

By Daniel A. Willis

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An absolute necessity for reporters who have been assigned to cover any royal events, this book is designed to help anyone who needs to learn basic knowledge about any of Europe's Royal Families. C...

The Archduke'S Secret Family

By Daniel A. Willis

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He Defied An Emperor To Be With Her. She Found The Love She Had Been Seeking In His Arms. Their Passion Ignited The Imagination Of An Empire. It Sounds Like A Promotion For The Latest Romance Novel...

Legends, Half-Truths, And Cherished Myths Of The Drane Family

By Daniel A. Willis

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Immortal Betrayal

By Daniel A. Willis

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The Romanoffs 100 Years Later

By Daniel A. Willis, Daniel A Willis

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Prophecy Of The Awakening

By Daniel A. Willis

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Can a fortune-teller, a scientist, a starlet, and a bounty hunter defy the might of the Vatican to bring about the Prophecy of the Awakening? Prophecy of the Awakening is recommended for readers of...

Dragon In The Lighthouse

By Jamie Noble Frier, Daniel A. Willis, Tim Baird

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Succession Explained

By Daniel A. Willis

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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.