Erwin Hackel Books

Tightening the Reins

By Erwin Hackel, Gotthard Stein

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Internationale Energieversorgung und Politische Zukunftssicherung Das Europaische Energiesystem Nach der Jahrtausendwende

By Erwin Hackel, Wolfgang Fischer

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Nuclear technology in all countries of the world is subject to controls from the International Atomic Energy Agency (IAEA) to prevent its misuse for military purposes. Recently these controls (or "...

Tightening the Reins

By Erwin Hackel

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Internationale Kontrolle Sensitiver Technologien

By Erwin Hackel, Gotthard Stein

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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.