David Welch Books

Modern European History 1871 1975 A Level Documentary Readers

By David Welch

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Germany, propaganda and total war, 1914-1918

By David Welch

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"David Welch has written the first book to fully examine German society - politics, propaganda, public opinion, and total war - in the Great War. Drawing on a wide range of sources - from posters,...

Kew Gardening Guide

By David Welch, Welch David

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Protecting the People. The Central Office of Information and the Creation of the Nanny State 1946 2010

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Propaganda Power and Persuasion

By David Welch

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Propaganda is all around us, used to promote a sense of common cause and belonging, change behaviour or influence ideas, as well as to mislead, deceive, even destroy. Perhaps the greatest and most...

Propaganda and the German Cinema 1933 1945

By David Welch

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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.