Gert Jonkers Books

Fantastic man

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Charismatic, compelling and trendsetting, 70 of the world's most influential and creative men presented by cult style-bible 'Fantastic Man'. The publication celebrates the ten-year anniversary of F...

Butt Book

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Buttoned Up

By Gert Jonkers, Jop Van Bennekom, Fantastic Man

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Buttoned up

By Jop Van Bennekom, Gert Jonkers

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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.