Jeffry M. Diefendorf Books

In the Wake of War: The Reconstruction of German Cities After World War II

By Jeffry M. Diefendorf

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Rebuilding Europe's bombed cities

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Rebuilding Europe's bombed cities

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American Policy and the Reconstruction of West Germany, 1945-1955

By Axel Frohn, Jeffry M. Diefendorf, Hermann Josef Rupieper

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This volume of essays by German and American historians deals with the most important issues of U.S. policy toward Germany in the decade following World War II: constitutional problems, political a...

American Policy Reconstruction

By Jeffry M. Diefendorf

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Businessmen and politics in the Rhineland, 1789-1834

By Jeffry M. Diefendorf

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City Country Empire

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City Country Empire

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Transnationalism and the German City

By J. Diefendorf, Janet Ward

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In the Wake of War

By Jeffry M. Diefendorf

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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.