Thomas F. Mathews Books

Art and Architecture in Byzantium and Armenia

By Thomas F. Mathews

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Armenian gospel iconography

By Thomas F. Mathews

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The Armenian Gospels of Gladzor

By Thomas F. Mathews, Thomas A. Mathews, Alice Taylor

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"The book known as the Gladzor Gospels is a masterpiece of fourteenth-century Armenian art. Now at the Charles E. Young Research Library at the University of California, Los Angeles, it is one of t...

The Armenian Gospels of Gladzor

By Thomas A. Mathews, Alice Taylor

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Holy Image Hallowed Ground Getty Trust Publications J. Paul Getty Museum

By Justin Sinaites, Thomas F. Mathews, David Jacoby

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Holy Image Hallowed Ground Getty Trust Publications J. Paul Getty Museum

By Justin Sinaites, Thomas F. Mathews, David Jacoby

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Anathemata heortika

By Joseph D. Alchermes, Thomas F. Mathews, Helen C. Evans, Thelma K. Thomas

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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.