Teresa Czerniewicz Umer Books

Krakow

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Enjoy the old-world beauty of Krakow with our DK Eyewitness Travel Guide, your companion for discovering what the oldest city in Poland has to offer visitors. Enjoy scenic walks exploring Krakow's...

Poland

By Teresa Czerniewicz Umer

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"DK Eyewitness Travel Guide: Poland is your in-depth guide to the very best of Poland. Whether exploring the liveliness of its big cities or taking in the natural beauty of its idyllic lakes, beach...

Polen

By Wolfgang Lehner, Teresa Czerniewicz Umer

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Austria

By Janina Kumaniecka, Joanna Egert Romanowska, Teresa Czerniewicz Umer

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Poland

By Malgorzata Omilanowska, Jerzy S. Majewski, Teresa Czerniewicz Umer

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Austria

By Janina Kumaniecka, Joanna Egert Romanowska, Teresa Czerniewicz Umer

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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.