Bertus Mulder Books

"At the end of the 1950s the young architect Bertus Mulder came to work for Gerrit Rietveld. This working relationship, which lasted for a number of years, developed into a close relationship that...

Het hart van de sociaal democratie

By Bertus Mulder

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Rietveld Schroder Huis 1925-1975

By Mulder Bertus.

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Handboek renovatie Gordel 20-40

By Mulder Bertus.

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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.