Ulrich Lins Books

Die gefahrliche Sprache

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The author describes the various persecutions which Esperanto or the Esperantists have suffered. He writes also about the ideologies for which Esperanto was out of favor. A great portion is dedicat...

Dangerous Language Esperanto under Hitler and Stalin

By Humphrey Tonkin, Ulrich Lins

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Dangerous Language Esperanto and the Decline of Stalinism

By Humphrey Tonkin, Ulrich Lins

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Dangerous Language Esperanto and the Decline of Stalinism

By Humphrey Tonkin, Ulrich Lins

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Dangerous Language

By Humphrey Tonkin, Ulrich Lins

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Zwei zaghafte Riesen?

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Zwei zaghafte Riesen?

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Dangerous Language Esperanto under Hitler and Stalin

By Humphrey Tonkin, Ulrich Lins

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Dangerous Language Esperanto under Hitler and Stalin

By Humphrey Tonkin, Ulrich Lins

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Die Omoto Bewegung und der Radikale Nationalismus in Japan

By Ulrich Lins

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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.