Ulrike Jenni Books

Friedrich Gauermann, 1807-1862

By Ulrike Jenni

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Frauen, Bilder, Manner, Mythen

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Evangeliar des Johann von Troppau

By Johann Von Troppau

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Sumptuously illuminated Evangeliary by Johann von Troppau who was a Bohemian priest, and canon of Brno. He is believed to have both written and illuminated this manuscript which was completed in ab...

Mitteleuropaische Schulen III (ca. 1350-1400)

By Ulrike Jenni

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Buchmalerei des Mittelalters. Eine Einfuhrung.

By Otto Pacht, Dagmar Thoss, Ulrike Jenni

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Margarete Schutte Lihotzky

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Die Blumenaquarelle des Moritz Michael Daffinger

By Ulrike Jenni

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Mitteleuropaische Schulen IV ca. 1380 1400 Tafel und Registerband

By Maria Theisen

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The catalog is dedicated to those manuscripts of the Austrian National Library which were commissioned by King Wenceslas IV (1361?1419) and the Prague court. It forms a unit together with the catal...

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.