John Varriano Books

Italian Baroque and Rococo architecture

By John L. Varriano

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Italian Baroque and Rococo Architecture

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Caravaggio

By Michelangelo Merisi Da Caravaggio

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In Caravaggio, Varriano uncovers the principles and practices that guided Caravaggio's brush as he made some of the most controversial paintings in the history of art. He sheds an important new lig...

Caravaggio: The Art of Realism

By John Varriano, Michelangelo Merisi Da Caravaggio

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A Literary Companion to Rome: Including Ten Walking Tours

By John L. Varriano

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Rome

By John Varriano

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Rome

By John Varriano, John L. Varriano

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Views of Rome

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Valenciennes Daubigny And The Origins Of French Landscape Painting

By Michael Marlais, Wendy M. Watson, John Varriano

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Arquitectura italiana del Barroco al Rococo

By Leticia Cabanas, John Varriano

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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.