Mark Leonard Books

These essays by leading thinkers and statesmen from across the globe discuss the inevitable tension between the use of military power in the search for security and the establishment of a rule-base...

Public Diplomacy

By Mark Leonard, Conrad Smewing, Catherine Stead

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Reclaiming Britishness

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British Public Diplomacy in the Age of Schisms

By Leonard Mark Small Andrew Rose Martin

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A power audit of EU Russia relations

By Mark Leonard

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What does Russia think

By Mark Leonard, Ivan Krastev, Andrew Wilson

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China 3.0 European Council on Foreign Relations Report .

By Edited By Leonard Mark

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Connectivity Wars

By Mark Leonard

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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.