William Tronzo Books

The Via Latina catacomb

By William Tronzo

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St. Peter s in the Vatican

By William Tronzo

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The cultures of his kingdom

By William Tronzo

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This analytical study takes seriously the proposition that the royal chapel of the Norman kings of Sicily, the Cappella Palatina in Palermo, preserves virtually intact - and uniquely so - an ensemb...

Dumbarton Oaks Papers Number Forty One 1987

By William Tronzo

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Petrarch s two gardens

By William Tronzo

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"This book is about landscape, particularly the designed landscape or garden, at a critical moment of change from the medieval to the early modern world. These landscapes are viewed here not as ind...

Petrarch's two gardens

By William Tronzo

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Italian Church Decoration of the Middle Ages and Early Renaissance

By William Tronzo

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Intellectual Life at the Court of Frederick II Hohenstaufen

By William Tronzo

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Radical Marble

By John Nicholas Napoli, William Tronzo

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St. Peter s in the Vatican

By William Tronzo

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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.