Yvonne J. Markowitz Books

Pharaohs of the Sun

By Sue H. D Auria, Yvonne J. Markowitz, Rita E. Freed

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Quiet ripples

By Yvonne J. Markowitz

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Egypt in the Age of the Pyramids

By Yvonne J. Markowitz, Joyce Haynes, Joyce L. Haynes, Rita E. Freed, Rita Freed

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Imperishable beauty

By Yvonne J. Markowitz

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Features jewelry pieces from the European Art Nouveau movement of the late 19th and early 20th centuries, showing all the major designers and jewelers from this groundbreaking era.

Imperishable beauty

By Yvonne J. Markowitz

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Features jewelry pieces from the European Art Nouveau movement of the late 19th and early 20th centuries, showing all the major designers and jewelers from this groundbreaking era.

Oscar Heyman

By Yvonne J. Markowitz

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"Since its founding in 1912, Oscar Heyman & Brothers has created fabulous jewels for some of the world's elite houses, causing it to be known in the trade as "the jewelers' jeweler." The Heyman Bro...

Jewels of the Nile

By Paula Artal Isbrand, Yvonne J. Markowitz, Sue DAuria, Erin Mysak, Peter Lacovara

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Imperishable Beauty

By Elyse Zorn Karlin, Yvonne J. Markowitz

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Artful adornments

By Yvonne J. Markowitz, Museum Of Fine Arts Boston.

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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.