Catharine H. Roehrig Books

Hatshepsut: From Queen to Pharaoh

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Fun with Hieroglyphs

By Catherine Roehrig

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Fun with hieroglyphs

By Catharine H. Roehrig

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Introduces Egyptian hieroglyphs, indicates how they correspond to the English alphabet, and explains how to use them to write words and sentences. Includes rubber stamps and an ink pad for printing...

Mummies and Magic

By Catharine H. Roehrig

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Mummies and Magic

By Sue D Auria, Catharine H. Roehrig, Peter Lacovara

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Explorers and Artists in the Valley of the Kings

By Catharine H. Roehrig

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Egyptian Art in the Age of the Pyramids

By Catharine H. Roehrig, Dorothea Arnold, Catherine Roehrig, Christiane Ziegler

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Dawn of Egyptian Art

By Susan J. Allen, Marianne Eaton Krauss, Diana Craig Patch, N.Y. Staff Metropolitan Museum Of Art New York

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Explorers and artists in the Valley of the Kings

By Catharine H. Roehrig

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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.