Helmut Braun Books

Liebstes Fraulein Moore Beautiful Rose

By Helmut Braun, Marianne Moore, Rose Auslander

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Zu Cleversulzbach im Unterland: Eduard M orikes Zeit in Cleversulzbach 1834 - 1843

By Helmut Braun

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Evangelischer Kirchenbau in Bayern seit 1945

By Hans Peter Hubner, Helmut Braun

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More than 700 Lutheran churches have been built in Bavaria since 1945. Introductory essays on the history of Lutheran church architecture in Bavaria are followed by a detailed description of 58 chu...

Soziale Sicherungssysteme

By Helmut Braun, Danica Berberovic, Nikola Spiric

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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.