Helena Koenigsmarkova Books

Jungfrauen Engel Phallustiere

By Carina Brumme, Kuhne Hartmut Church Historian, Helena Koenigsmarkova

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Dieser Katalog präsentiert erstmals eine Sammlung von etwa 500 französischen Zeichen, die 1891 von dem Mäzen Adalbert von Lanna für das Prager Kunstgewerbemuseum erworben wurde und nach dem Ende de...

Museum of Decorative Arts in Prague

By Helena Koenigsmarkova

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"The birth of Czech Cubism transformed Prague into one of pre-War Europe's centres of avant-garde art. It manifested itself across architecture, the applied arts and graphic art with a unity of art...

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.