Susan B. Downey Books

Architectural Terracottas from the Regia

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The Regia was the house of the Pontifex Maximus, Rome's High Priest, who lived in the Forum. The men who held this office played an important role in the life of the Roman state for centuries: the...

Terracotta Figurines and Plaques from Dura Europos

By Susan B. Downey

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Mesopotamian religious architecture

By Susan B. Downey

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Excavations at Dura Europos the Stone and Plaster Sculpture

By Susan B. Downey

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Icon cult and context

By Ann Irvine Steinsapir, Susan B. Downey, Maura K. Heyn

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"This festschrift honors UCLA professor emerita Susan Downey and her meticulous scholarship on religious architecture and imagery in the Roman/Hellenistic world. The iconography of gods and goddess...

Icon Cult and Context

By Ann Irvine Steinsapir, Maura K. Heyn

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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.