Joan R. Mertens Books

Greek Art from Prehistoric to Classical: A Resource for Educators

By Joan R. Mertens, Sean Hemingway, Carlos A. Picon, Michael Norris, Elizabeth J. Milleker, Christopher Lightfoot

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The Cesnola Collection: Terracottas: CD-ROM

By Joan R. Mertens, Servas Ploutis, Gloria S. Merker

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Art of the Classical World in The Metropolitan Museum of Art: Greece, Cyprus, Etruria, Rome

By Joan R. Mertens, Sean Hemingway, Carlos A. Picon, Metropolitan Museum Of Art New York N.Y., Elizabeth J. Milleker, Christopher Lightfoot

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Ancient Art from Cyprus

By Joan R. Mertens, Marice E. Rose, Servas Ploutis, Metropolitan Museum Of Art New York N.Y., Marice Rose, Joan Mertens

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Period rooms in the Metropolitan Museum of Art

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Superb examples of interior design through the ages are on view in the period rooms at The Metropolitan Museum of Art, New York. From an ancient Roman bedroom excavated near Pompeii to a Louis XVI...

Attic white-ground

By Joan R. Mertens

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Cesnola Collection of Cypriot Art

By Joan R. Mertens, Gloria S. Merker, Vassos Karageorghis

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Roman Frescoes from Boscoreale

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How To Read Greek Vases Exhibition At The Metropolitanmuseum Of Art New York

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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.