Mary Mullen Cunningham Books

American Sculpture in the Museum of American Art of the Pennsylvania Academy of the Fine Arts

By Susan James Gadzinski, Pennsylvania Academy Of The Fine Arts. Museum Of American Art., Pennsylvania Academy Of The Fine Arts Museum, Mary Mullen Cunningham

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Heinz Warneke: 1895 1983 A Sculptor First (1895-1983 : a Sculptor First and Last)

By Mary Mullen Cunningham

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This book documents the work and career of the German-American sculptor Heinz Warneke. Mary Mullen Cunningham outlines Warneke's studies at the Berlin Arts and Crafts School during the emergence of...

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.