Andrew Duff Books

Britain s Agenda in Europe

By Andrew Duff, Donald Maitland

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Understanding the Euro Future of European Parliamentary Democracy

By Andrew Duff

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The Unforseeable Circumstances of Mr. Gordon

By Andrew Duff

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Britain and the Puzzle of European Union

By Andrew Duff

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The true story of Sikkim, a tiny Buddhist kingdom in the Himalayas that survived the end of the British Empire in India only to be annexed by its neighbour in 1975. Based on interviews, archive res...

Sikkim

By Andrew Duff

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Making the difference

By Andrew Duff

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The European Union after Amsterdam

By Andrew Duff

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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.