Professor Jonathan Brown Books

Velazquez: Painter and Courtier

By Jonathan Brown

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A Palace for a King: The Buen Retiro and the Court of Philip IV

By John H. Elliot, Jonathan Brown

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Painting in Spain, 1500-1700

By Jonathan Brown

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Focusing on the interaction between art and the socio-economic and political conditions that prevailed in Spain's golden age, this book offers information about religious beliefs, social attitudes...

Rural World of Eric Guy

By Jonathan Brown

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Velazquez: The Technique of Genius

By Carmen Garrido, Jonathan Brown, Professor Jonathan Brown

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Great painters are invariably great technicians. In creating the techniques he needed to express his ideas, Velazquez became one of the most original practitioners of the art of painting ever known...

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.