Jack Ludlow Books

Prince of legend

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Thanks to the stratagems of Bohemund de Hauteville, leader of the Apulian Normans, the Crusade has taken the city of Antioch, and just in time. Once the besiegers, Bohemund and his men are about to...

Mercenaries

By Jack Ludlow

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"Six brothers, the sons of Tancred de Hauteville, prepare to experience their first taste of battle ... 1033, the Norman/French border. They have been trained since birth to become great warriors,...

Mercenaries

By Jack Ludlow

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"Six brothers, the sons of Tancred de Hauteville, prepare to experience their first taste of battle ... 1033, the Norman/French border. They have been trained since birth to become great warriors,...

The Burning Sky

By Jack Ludlow

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The Last Roman

By David Thorpe, Jack Ludlow

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Hawkwood

By Peter Noble, Jack Ludlow

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The Pillars of Rome

By Jack Ludlow

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The Pillars of Rome

By Nick Boulton, Jack Ludlow

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La espada de la venganza The Sword of Revenge La Republica Republic Spanish Edition

By Jack Ludlow

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Son of Blood Bk. 1

By Jack Ludlow

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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.