Peter Kooij Books

Siemen Dijkstra verzameld

By Siemen Dijkstra, Pieter Jonker, Peter Kooij

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Het boek 'Siemen Dijkstra verzameld' vertelt het verhaal over de collectie werken op papier van Siemen Dijkstra die door Joop Nieuwstraten (de vroegere directeur van het RKD ? Nederlands instituut...

Jeanne Bieruma Oosting en de prentkunst

By Jeanne Bieruma Oosting

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Jeanne Bieruma Oosting (1898-1994) had a great passion for graphics. Her oeuvre includes many hundreds of prints, made in a variety of graphic techniques and created in every phase of her long work...

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.