Pawel Filipczak Books

An introduction to the Byzantine administration in Syro Palestine on the eve of the Arab conquest

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"The work is an introduction to the topic of the Byzantine administration in Syro-Palestine between the reign of Justinian the Great and Heraclius. The book is based both on a thorough analysis of...

An introduction to the Byzantine administration in Syro-Palestine on the eve of the Arab conquest

By Pawel Filipczak

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"The work is an introduction to the topic of the Byzantine administration in Syro-Palestine between the reign of Justinian the Great and Heraclius. The book is based both on a thorough analysis of...

Bunty i niepokoje w miastach wczesnego Bizancjum IV wiek n.e.

By Pawel Filipczak

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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.