Christine Riedl Valder Books

Georg Britting und Gottfried Kolwel

By Bernhard Lubbers, Christine Riedl Valder, Sigmund Bonk

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Regenstauf

By Klaus Leidorf, Christine Riedl Valder, Roman V Gotz

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Literaturtage im Oberpfalzer Jura 2006

By Christine Riedl Valder, Markt Beratzhausen

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Aventinus

By Christine Riedl Valder

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Johann Baptist und Dominikus Zimmermann

By Christine Riedl Valder

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"Die Gebrüder Zimmermann leisteten einen entscheidenden Beitrag zur Entstehung und Vollendung des süddeutschen Rokoko. Aufgewachsen im Milieu der Wessobrunner Stuckkünstler, blieben sie diesem Krei...

Johann Baptist und Dominikus Zimmermann

By Christine Riedl Valder

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750 Jahre Burg Ehrenfels in Beratzhausen

By Andreas Boos, Christine Riedl Valder

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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.