Donja De Ruiter Books

"In this book, the history and work of the International Court of Justice is commemorated. Its past and future role is examined from various angles which have been defined as "roles" played by the...

The International Court of Justice

By W. Van Der Wolf, Donja De Ruiter

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"In this book, the history and work of the International Court of Justice is commemorated. Its past and future role is examined from various angles which have been defined as "roles" played by the...

The Extraordinary Chambers in the Courts of Cambodia

By Willem Jan Van Der Wolf, Claudia Tofan

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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.