Helen Hills Books

Invisible City: The Architecture of Devotion in Seventeenth-Century Neapolitan Convents

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"Invisible City vividly portrays the religious world of seventeenth-century Naples, a city of familial and internecine rivalries, of religious devotion and intense urban politics, of towering struc...

Autumn Light

By Helen Hills

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Spiritual Living

By Helen Hills

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Spiritual Living

By Helen Hills

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Spiritual Living

By Helen Hills

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The matter of miracles

By Helen Hills

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This book investigates baroque architecture through the lens of San Gennaro's miraculously liquefying blood in Naples. This vantage point allows a bracing and thoroughly original rethink of the pow...

ARCHITECTURE AND THE POLITICS OF GENDER IN EARLY MODERN EUROPE ED. BY HELEN HILLS.

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Representing Emotions

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Gender and Devotion in Early Modern Italy

By Helen Hills

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Aging Well

By Helen Hills

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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.