Marjorie B. Cohn Books

Lois Orswell, David Smith, and Modern Art

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"Lois Orswell (1904-1998) was a pioneering collector of abstract expressionist art and modern sculpture. A native of New England she was notable not only for the quality of her acquisitions but als...

Degas at Harvard

By Marjorie B. Cohn, Jean Sutherland Boggs

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How Prints Look an Illustrated Guide

By William Mills Ivins Jr., Marjorie B. Cohn, William Mills Ivins Sr.

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Wash and Gouache

By Marjorie B. Cohn, Majorie B. Cohn

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Francis Calley Gray and art collecting for America

By Marjorie B. Cohn

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Mark Rothko s Harvard Murals

By Paul Whitmore, Marjorie B. Cohn, Mark Rothko, Karyn Esielonis

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Noble Collection

By Marjorie B. Cohn

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Touchstone

By Marjorie B. Cohn

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Lois Orswell David Smith and Modern Art

By David Smith April 29 2008, Marjorie B. Cohn

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Degas at Harvard

By Marjorie B. Cohn

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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.