Anjo Harryvan Books

Max Kohnstamm

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Biography of the Dutch diplomat who, after surviving the horrors of World War II, worked with Jean Monnet for nearly 30 years to create the foundations of the present-day European Union.

Internationale organisatie

By Anjo Harryvan, J. Van Der Harst

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Max Kohnstamm

By A. G. Harryvan

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In pursuit of influence

By A. G. Harryvan

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Verloren consensus

By A. G. Harryvan, J. Van Der Harst

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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.