Paul Witteman Books

De Baard van Lubbers
De Baard van Lubbers

By Paul Witteman, Tromp Jan

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De zaak Stinissen
De zaak Stinissen

By Peter De Bie

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Erfstukken
Erfstukken

By Paul Witteman

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Zoektocht naar het geheim van muzikaliteit.

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Met je hoofd in de huiskamer
In hoger sferen
In hoger sferen

By P. Witteman

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Het geluid van wolken
Het geluid van wolken

By Paul Witteman

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Columns over persoonlijke voorkeuren en favorieten van de auteur in de klassieke muziek; met audio cd.

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Opgenomen
Opgenomen

By Paul Witteman

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Interviews met zes vooraanstaande Nederlandse psychiaters over hun vakgebied.

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Een geweldige tijd!
Een geweldige tijd!

By Paul Witteman

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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.

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