Anthony Kaldellis Books

Streams of gold rivers of blood

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In the second half of the tenth century, Byzantium embarked on a series of spectacular conquests, first in the southeast against the Arabs, then in Bulgaria, and finally in the Georgian and Armenia...

Mothers and Sons, Fathers and Daughters: The Byzantine Family of Michael Psellos

By Anthony Kaldellis, Michael Psellus

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Byzantine Readings of Ancient Historians

By Anthony Kaldellis

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Hellenism in Byzantium

By Anthony Kaldellis

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The Byzantine Republic

By Anthony Kaldellis

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Romanland

By Anthony Kaldellis

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Procopius of Caesarea

By Anthony Kaldellis

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A New Herodotos

By Anthony Kaldellis

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Byzantium Unbound

By Anthony Kaldellis

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The prosopography of Byzantine Lesbos 284 1355 A.D.

By Anthony Kaldellis

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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.