Martina Christmeier Books

Das Gelande

By Alexander Schmidt, Martina Christmeier

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Albert Speer in der Bundesrepublik

By Florian Dierl, Magnus Brechtken, Alexander Schmidt, Hanne Lessau, Martina Christmeier

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Albert Speer in the Federal Republic

By Magnus Brechtken, Alexander Schmidt, Martina Christmeier

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"Albert Speer, architect and armaments minister of the Nazi regime, successfully captured the image of a non-political technocrat after his release from prison in 1966. He had had no knowledge of t...

Nuremberg Site of the Nazi Party Rallies

By Martina Christmeier

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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.