Harrie Geelen Books

Herman het kind en de dingen

By Harrie Geelen

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Kerstklokje klingelingeling

By Wim Hofman, Harrie Geelen, Nannie Kuiper

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Korte verhalen en gedichten, spelend in de tijd rondom Kerstmis. Vanaf ca. 3 jaar.

Ooms en tantes, tantes en ooms

By Harrie Geelen

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De verjaardag van Gijs

By Harrie Geelen

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De moeder van Gijs is over zijn verjaardagscadeau gevallen en kan niet meer lopen. Nu moet Gijs zelf naar de bakker voor gebakjes; hond Flop gaat mee. Prentenboek met kleurige aquarelschilderingen...

Zoek vogeltje

By Harrie Geelen

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L Ombre de Yann

By Harrie Geelen

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Het nijlpaard Ellende

By Harrie Geelen

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De plant van Jan

By Harrie Geelen

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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.