Jill Rubalcaba Books

A Place in the Sun

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In ancient Egypt, the gifted young son of a sculptor is taken into slavery when he attempts to save his father's life, and is himself almost killed before his exceptional talent leads Pharoah to na...

The Early Human World

By Jill Rubalcaba, Peter Robertshaw

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Teaching Guide to the Ancient Egyptian World

By Jill Rubalcaba, Eric H. Cline

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Teaching Guide to the Early Human World

By Jill Rubalcaba, Peter Robertshaw

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Student Study Guide to the Early Human World

By Jill Rubalcaba, Peter Robertshaw

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Student Study Guide to the Ancient Egyptian World

By Jill Rubalcaba, Eric H. Cline

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HALLIE S SONG

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The wadjet eye

By Jill Rubalcaba

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After his mother dies, Damon, a young medical student living in Alexandria, Egypt, in 45 B.C., makes a perilous journey to Spain to locate his father who is serving in the Roman army led by Julius...

Saint Vitus' dance

By Jill Rubalcaba

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Fourteen-year-old Melanie must come to terms with her mother's incurable illness and the possibility that she herself may develop the disease.

A place in the sun

By Jill Rubalcaba

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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.