Conrad Gietman Books

De Lagchende Vallei

By Conrad Gietman, Jan Kamphuis, Rob Gruben, Taco Hermans

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Gelderland is dé kastelenprovincie van Nederland. Voor het overzichtswerk over kastelen in Gelderland werden 390 bestaande en verdwenen kastelen in kaart gebracht. In de loop van 80 jaar zijn er da...

Huis en habitus

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De jacht

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Biljoen

By Conrad Gietman, Jorien Jas

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Biljoen has been praised many times, but never before has the history of the castle, residents and estate been described so attractively as in this book. Biljoen gained fame especially in its eight...

Een goed voor de eeuwigheid

By Gietman Conrad Verschoor Arjan

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Republiek van adel

By Conrad Gietman

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Wapenregister van de Nederlandse adel

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Adel en heraldiek in de Nederlanden

By Conrad Gietman, R. H. Alma, A. J. Mensema

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"Adel en heraldiek zijn vanaf de verschijning van de eerste wapens nauw met elkaar verbonden. De heraldische vormentaal werd al snel geadopteerd door burgers en steden, maar in de beleving van vele...

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.