Lothar Machtan Books

The Hidden Hitler

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"Adolf Hitler. No other figure in contemporary history is associated with such far-reaching historical impact and such monstrous crimes. His name alone is emblematic of world war and Holocaust. If...

The Hidden Hitler

By Susanne Ehlert, Lothar Machtan, John Brownjohn

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The hidden Hitler

By Lothar Machtan

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A book that will change forever our understanding of Hitler & his entourage. Embargoed in the U.S. & twelve other countries. Machtan (modern and current history, Bremen U., Germany) contends that n...

The Hidden Hitler

By Lothar Machtan

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Hitler sa vie secrete

By Lothar Machtan

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Die Abdankung

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Bismarcks Tod und Deutschlands Tranen

By Lothar Machtan

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Der Kaisersohn bei Hitler

By Lothar Machtan

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Hitlers Geheimnis. Das Doppelleben eines Diktators.

By Lothar Machtan

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Streiks und Aussperrungen im Deutschen Kaiserreich

By Lothar Machtan

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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.