Paul Arnold Books

Grosser deutscher Munzkatalog von 1800 bis heute

By Paul Arnold, Harald Kuthmann, Dirk Steinhilber, Paul Arnold Numismatist, Dieter Fassbender

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Keramiekstad

By Paul Arnold, Ad Knotter

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Ter gelegenheid van de sluiting van het laatste restant van het Sphinxbedrijf verschijnt Keramiekstad over de veelzijdige en spraakmakende geschiedenis van deze typisch Maastrichtse maakindustrie....

Le Zen et la tradition japonaise

By Paul Arnold

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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.