Peter C. Caldwell Books

Love, Death, and Revolution in Central Europe

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The philosopher of religion and critic of idealism, Ludwig Feuerbach had a far-reaching impact on German radicalism around the time of the Revolution of 1848. This intellectual history explores how...

From Liberal Democracy to Fascism Studies in German Histories

By Peter C. Caldwell, William E. Scheuerman

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Popular sovereignty and the crisis of German constitutional law

By Peter C. Caldwell

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Popular Sovereignty and the Crisis of German Constitutional Law is a historical analysis of competing doctrines of constitutional law during the Weimar Republic. It chronicles the creation of a new...

Popular sovereignty and the crisis of German constitutional law

By Peter C. Caldwell

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Germany Since 1945

By Karrin Hanshew, Peter C. Caldwell

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Germany Since 1945

By Karrin Hanshew, Peter C. Caldwell

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Democracy Capitalism and the Welfare State

By Peter C. Caldwell

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German unification

By Peter C. Caldwell

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"It is easy in retrospect to ascribe inevitability to Germany's unification in 1990. But in fact, such events are the product of decisions made when the outcomes of a process are not yet clear. A d...

Love Death and Revolution in Central Europe

By Peter C. Caldwell

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Dictatorship State Planning and Social Theory in the German Democratic Republic

By Peter C. Caldwell

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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.