Jan Schubert Books

The sun seed

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A seed follows the cycle of spring into summer, fall, and winter as it grows from seedling to flower and then drops its seeds back into the earth. Includes instructions and resources for felting, t...

Sun Seed

By Jan Schubert

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Willem Adolph Visser t Hooft

By Jan Schubert

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Die Handelskooperation Zwischen der Europaeischen Union und Den AKP Staaten und Deren Vereinbarkeit Mit Dem GATT

By Jan Schubert

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Inspekcja Grobow Zolnierskich w Przemyslu

By Jan Schubert

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Freedom of Religion or Belief Prisoners List

By Willy Fautre, Human Rights Without Frontiers International Staff, Mark Barwick, Alfiaz Vaiya, Jan Schubert

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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.