Harald Friedl Books

Der Schwanz

By Harald Friedl

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Reportage on the EU s instrument for stability

By Harald Friedl, Andrea Ricci

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"Over the last two years the European Union has taken a range of steps to enhance the way it deals with international crises and natural disasters. In addittion to a substantial increases in EU fun...

Das gebuchte Paradies gutes Gewissen inklusive. Ethische Grundlagen des umwelt und sozialvertraglichen Ferntourismus

By Harald A. Friedl

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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.