Gerben Hellinga Books

Personalities

By Gerben Hellinga, J. B. Van Luyn, Hellinga Gerben, Henk Jan Dalewijk

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Oog om oog

By Gerben Hellinga

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Een Amsterdamse scharrelaar wordt door de dochter van een vriend te hulp geroepen als een pistool, dat zij tegen haar zin voor iemand in huis bewaarde, verdwenen is.

Moord In De Rocky Mountains

By Gerben Graddesz Hellinga

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De samenzwering

By Gerben Hellinga

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Een zuidelijke en een noordelijk soldaat proberen tijdens de Amerikaanse Burgeroorlog (1861-1865) een complot te verijdelen.

Coriolis de stormplaneet

By Gerben Graddes Hellinga

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Vlammen

By Gerben Hellinga

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Wintervlinder

By Gerben Hellinga

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STILLE

By Gerben Hellinga

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De weg naar Suckersville

By Gerben Graddesz Hellinga

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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.