Thea Von Harbou Books

Metropolis

By Thea Von Harbou

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Das Testament des Dr. Mabuse

By Seymour Nebenzal, Thea Von Harbou, Lang Fritz

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Locked away in an asylum for a decade and teetering between life and death, the criminal mastermind Dr. Mabuse has scribbled his last will and testament: a manifesto establishing a future empire of...

M

By Jon J. Muth, Thea Von Harbou, Fritz Lang

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Metropolis

By Thea Von Harbou

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The rocket to the moon

By Thea Von Harbou

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Metropolis

By Fritz Larg

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Metropolis

By Thea Von Harbou

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Metropolis

By Thea Von Harbou

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Metropolis

By Forrest J. Ackerman, Thea Von Harbou, Fritz Lang

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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.