Hendrik W. Dey Books

Western monasticism ante litteram

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"Space has always played a crucial part in defining the place that monks and nuns occupy in the world. Even during the first centuries of the monastic phenomenon, when the possible varieties of mon...

Aurelian Wall and the Refashioning of Imperial Rome AD 271 855

By Hendrik W. Dey

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The Aurelian wall and the refashioning of imperial Rome A.D. 271 855

By Hendrik W. Dey

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"This book explores the relationship between the city of Rome and the Aurelian wall during the six centuries following its construction in the 270s AD, a period when the city changed and contracted...

Making of Medieval Rome

By Hendrik W. Dey

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Making of Medieval Rome

By Hendrik Dey

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Afterlife of the Roman City

By Hendrik W. Dey

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Making of Medieval Rome

By Hendrik Dey

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Afterlife of the Roman City

By Hendrik W. Dey

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Aurelian Wall and the Refashioning of Imperial Rome AD 271 855

By Hendrik W. Dey

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Afterlife of the Roman City

By Hendrik W. Dey

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"This book offers a new and surprising perspective on the evolution of cities across the Roman Empire in late antiquity and the early Middle Ages (third to ninth centuries AD). It suggests that the...

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.