Heike B. Gortemaker Books

Eva Braun

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Eva Braun and Adolf Hitler were together for fourteen years, a relationship that ended only with their marriage and double suicide in Berlin. Braun was obsessed with sport, fashion, photography and...

Eva Braun Leben Mit Hitler

By Heike B. Gortemaker

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Ein deutsches Leben

By Heike B. Gortemaker

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Eva Braun

By Heike B. Gortemaker

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Eva Braun

By Damion Searls, Heike B. Gortemaker

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Eva Braun

By Heike B. Gortemaker

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In this groundbreaking biography, German historian Heike B. Görtemaker delves into the startlingly neglected historical truth about Adolf Hitler's mistress. More than just the vapid blonde of popul...

Eva Braun

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From one of Germany’s leading young historians, the first comprehensive biography of Eva Braun, Hitler’s devoted mistress, finally wife, and the hidden First Lady of the Third Reich. In this groun...

Hitler s Court

By Heike B. Gortemaker

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Hitler s Court

By Heike B. Gortemaker

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Hitler s Court

By Heike B. Gortemaker

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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.