Charles Messenger Books

The Second World War

By Charles Messenger

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Presents, in text and illustrations, an overview of the causes, events, and outcome of the Second World War.

The Middle East

By Charles Messenger

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Discusses, in text and illustrations, the history and importance of the Middle East and the ethnic, religious, and political divisions which continue to be the source of conflict in the region.

Armies of World War 3

By Charles Messenger

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NORTHERN IRELAND

By Charles Messenger.

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Blitzkrieg story

By Charles Messenger

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The art of blitzkrieg

By Charles Messenger

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The unknown Alamein

By Charles Messenger

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The Tunisian campaign

By Charles Messenger

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Cologne, the first 1000-bomber raid

By Charles Messenger

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Anti Armour Warfare

By Charles Messenger

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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.