Nancy Patterson Sevcenko Books

Illustrated manuscripts of the Metaphrastian menologion

By Nancy Patterson Sevcenko

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The Life of Saint Nicholas of Sion Archbishop Iakovos Library of Ecclesiastical and Historical Sources No 10

By Ihor Sevcenko, Nancy Patterson Sevcenko

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Greek manuscripts at Princeton sixth to nineteenth century

By Sofia Kotzabassi

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Medieval Cyprus

By Nancy Patterson Sevcenko, Christopher Frederick Moss

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"Cyprus has always demonstrated a fascinating openness to divergent cultures - at no time more than in the Middle Ages, when successive Byzantine and Latin conquerors settled on the island and domi...

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.