Tamra Orr Books

Asking questions finding answers
Asking questions finding answers

By Tamra Orr

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Presents an overview of the development of homeschooling, shares the author's experiences as a stay-at-home mom learning with her kids, and presents essays by homeschooling kids, parents, and advoc...

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50 great African Americans
50 great African Americans

By Tamra Orr

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The Department of Transportation This Is Your Government
The Atom Bomb
The Atom Bomb

By

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The Hydrogen Bomb
The Hydrogen Bomb

By Tamra Orr

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Gary Soto
Gary Soto

By Tamra Orr, Tamra B Orr

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A Primary Source History of the Colony of New Jersey
The Department of Transportation This Is Your Government
A Primary Source History of the Colony of New Jersey
Avian Flu
Avian Flu

By Tamra Orr

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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.

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