Diederik Oostdijk Books

Klokken voor Amerika

By Diederik Oostdijk

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Tales of the Great Victory

By Oostdijk D. Valenta M.G.

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Bells for America

By Diederik Oostdijk

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Among the nightmare fighters

By Diederik Oostdijk

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On the first comprehensive study of American male poets of World War II, Diederik Oostdijk gives voice to the literary men still considered to be a part of the Silent Generation. Focusing not only...

Robert Lowell in a New Century

By Boris Vejdovsky, Diederik Oostdijk, Astrid Franke, Thomas Austenfeld

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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.