Piotr Sadowski Books

The knight on his quest

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"This book offers an integrated interpretative analysis of the major thematic aspects of the English fourteenth-century romance Sir Gawain and the Green Knight. The chief aim of author Piotr Sadows...

From interaction to symbol

By Piotr Sadowski

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Wybrane problemy nauki i nauczania prawa

By Piotr Sadowski, Szymanski Andrzej Dr, Ewa Kozerska

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Egalitaryzm i elitaryzm

By Piotr Sadowski, Szymanski Andrzej Dr, Ewa Kozerska

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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.