Annemarie Vels Heijn Books

In 1613 kocht Jan Oly het stuk land waarop kort daarna het Sint-Andrieshofje aan de Egelantiersgracht gebouwd zou worden. Hier kregen 66 arme, oude, katholieke vrouwen gratis wonen en bedeling (tur...

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By Annemarie Vels Heijn, Akkerym Doevendans, Epco Runia

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Hendrik graaf van den Bergh 1573 1638

By Annemarie Vels Heijn, Diane Visser

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Anton L. Koster 1859 1937

By Annemarie Vels Heijn, Floor De Graaf

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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.