Piotr Kowalski Books

Dark Souls Vol. 3: Legends of the Flame

By Written By George Mann Dan Watters Tauriq Moosa Cassandra Khaw Michael Walsh

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In a realm where hollowed champions rise and fall with the ages, where brave knights quest for absolution and bonfires blaze against the everdark, myth and legend will forever prevail...   Fro...

Piotr Kowalski

By Jean Christophe Bailly

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Badlands T03

By Aurore Folny, Corbeyran, Piotr Kowalski

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Time Machine

By P. Kowalski, Piotr Kowalski

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Wedrowac, pielgrzymowac, byc turysta

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General brygady Wlodzimierz Ostoja Zagorski 1882 1927

By Piotr Kowalski

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Theatrum swiata wszystkiego i pocciwy gospodarz

By Kowalski Piotr

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Zwierzoczlekoupiory, wampiry i inne bestie

By Kowalski Piotr

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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.