Els Kuijpers Books

R.D.E. Ootje Oxenaar

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The role played by R.D.E. ('Ootje') Oxenaar in the development of Dutch graphic design is a fascinating one. In 1970 he joined the Department of Art and Design at what was then the Dutch Postal and...

Ootje Oxenaar

By Els Kuijpers

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1 1 1

By Els Kuijpers

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All nine issues of 1:1:1 gathered in one volume. Initiated by graphic designers Richard Niessen and Esther de Vries, the series explores forms of expression in design and offset printing. The start...

And or

By Jan Van Toorn, Els Kuijpers

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Modes of Criticism 3

By Francisco Laranjo, Els Kuijpers

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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.