Andrea Hellmann Books

Norm Dynamics in Multilateral Arms Control

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"Efforts to create or maintain rules to contain the risks stemming from an unrestrained multilateral arms race are at the core of a world order based on consensual norms rather than on a pure balan...

Norm Dynamics in Multilateral Arms Control

By Alexis Below, Annette Schaper, Friederike Klinke, Franziska Plummer, Andrea Hellmann

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Teilzeitarbeit

By Heribert Staudacher

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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.