Marianna Kolozsvary Books

Forsaken world

By Marianna Kolozsvary

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From the clearest springs

By Imre Bak, Dezso Korniss, Marianna Kolozsvary

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Dezső Korniss was the first Hungarian artist to treat the motifs he retrieved from that "clear spring" of folk art not as decorations or accessories, but as independent artworks in their own right,...

Vasilescu collection Gyor

By Marianna Kolozsvary

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Id. Vasilescu Janos gyujtemeenye

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Hungarian art 1900 1950

By Marianna Kolozsvary

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Roman Gyorgy

By Marianna Kolozsvary

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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.