Gerhard Kopf Books

Gerhard Kopf

By Klaus Hubner, Irmgard Ackermann, Uli Olschewski

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Ezra & Luis, oder, Die Erstbesteigung des Ulmer Munsters

By Gerhard Kopf

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Ein alter Herr

By Gerhard Kopf, Gerhard K Opf

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"A fictional autobiography of the famed eighteenth-century Italian engraver Giovanni Battista Piranesi, Piranesi's Dream draws from fact to imagine the embittered, eccentric, yet fantastically crea...

There Is No Borges

By Gerhard Kopf, A. Leslie Willson

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Innerfar & Bluff, or the Southern Cross

By Gerhard Kopf

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Innerfar, Gerhard Kopf's first novel, describes the life of Karlina Piloti, an eccentric poet and friend of writers, who vanishes into madness. Piloti is based on Ilse Schneider-Lengyel, the real-l...

Nurmi or The Journey to the Trout

By Gerhard Kopf

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The narrator in the novel sketches from his memory the vivid portrait of his uncle - called Nurmi by everyone because in his youth he competed against the famous long-distance runner, and was, of c...

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.