Roger Crowley Books

1453

By Roger Crowley

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Empires of the sea

By Roger Crowley

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In 1521, Suleiman the Magnificent, ruler of the Ottoman Empire at the height of its power, despatched an invasion fleet to the island of Rhodes. This was the opening shot in an epic struggle betwee...

1453 Lib E

By Roger Crowley, Simon Prebble

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1453

By Roger Crowley

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The Accursed Towerfur

By Matt Kugler, Roger Crowley

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Empires of the Sea

By Roger Crowley, John Lee

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Conquerors

By Roger Crowley

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Konstantinopel 1453

By Roger Crowley

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Venecia. Ciudad de fortuna

By Roger Crowley, Joan Eloi Roca

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La torre Maldita

By Roger Crowley, Joan Eloi Roca

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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.