Piotr Paszkiewicz Books

This guide includes suggested itineraries and highlightsto help you make the most of your trip. It features maps, 3D models, and hotel and restaurant listings at various price levels.

Canary Islands

By Piotr Paszkiewicz

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Provides background information on the Canary Islands; describes the major sights, and suggests hotels, restaurants, entertainment, and outdoor activities.

Cmentarz Prawoslawny w Warszawie

By Piotr Paszkiewicz

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Jerozolima Miasto Wiecznej Niezgody

By Piotr Paszkiewicz

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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.