Michael Geyer Books

Religion und Nation Nation und Religion. Beitrage zu einer unbewaltigten Geschichte

By Hg. Von Michael Geyer Und Hartmut Lehmann

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Resistance against the Third Reich

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Resistance against the Third Reich: 1933-1990

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Renewable Energy

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Renewable Energy: Sources for Fuels and Electricity provides a sound and thorough look at the need to find new ways to meet the growing demand for energy. Because of the increasing severity of pro...

Zerbrochener Spiegel

By Michael Geyer

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Aufrustung oder Sicherheit

By Michael Geyer

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Psychotherapie in Ostdeutschland

By Michael Geyer

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Die Gegenwart Gottes in der modernen Gesellschaft

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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.