Theo IJzermans Books

Beren op de weg spinsels in je hoofd omgaan met emoties op het werk

By Theo IJzermans, Coen Dirkx

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Beren op de weg spinsels in je hoofd

By Theo IJzermans

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Rum en Coca Cola

By Theo IJzermans

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In Amsterdam wordt een moord gepleegd die te maken heeft met de verdwijning van de juwelen van de familie Bacardi die tijdens de Cubaanse revolutie het land uitgesmokkeld werden maar in verkeerde h...

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.