Ruud Koopmans Books

Challenging Immigration and Ethnic Relations Politics

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Challenging Immigration and Ethnic Relations Politics: Comparative European Perspectives

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Democracy from Below

By Ruud Koopmans

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West Germany is generally considered the country where new social movements addressing themes such as ecology, peace, and women's rights found their strongest and most pronounced expression. This b...

Contested Citizenship

By Ruud Koopmans, Marco Giugni, Paul Statham, Florence Passy

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Contested Citizenship

By Ruud Koopmans, Marco Giugni, Paul Statham, Florence Passy

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New Social Movements in Western Europe

By Ruud Koopmans

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New Social Movements in Western Europe

By Ruud Koopmans

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Acts of Dissent

By Dieter Koopmans Ruud Niedhardt Friedhelm Rucht

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Acts of Dissent

By Rucht Dieter

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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.