Jonathan Alford Books

The Soviet Union

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"Under communism, the power of the state is still being bolstered and the state is swelling up. The people are not growing lean, but not fat either, due to exorbitant demands made by the military o...

Adelphi Library

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Europe in the Western Alliance

By Jonathan Alford

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Military Power in Europe

By Lawrence Freeman

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Arms control and European security

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Europe in the Western alliance

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Military power in Europe

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Sea power and influence

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Greece and Turkey Adelphi Library

By Jonathan Alford

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The Soviet Union

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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.