Pierfrancesco Porena Books

Les cites de l'Italie tardo-antique, IVe-VIe siecle

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Expropriations et confiscations dans les royaumes barbares

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"arbarian kingdoms within the provinces of the empire, after its existence in the West (regardless or maintaining diplomatic relations with the new leaders the Emperor of Constantinople). By asking...

L insediamento degli ostrogoti in Italia

By Pierfrancesco Porena

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Collector of Prefectures. The Inexorable Rise of Sextus Petronius Probus

By Pierfrancesco Porena

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Origini della Prefettura del Pretorio Tardoantica

By Pierfrancesco Porena

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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.