Theresa Oliver Books

Developing Writing Skills in Italian

By Theresa Oliver Federici, Theresa Oliver

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Star

By Theresa Oliver

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"Abigail Starland, better known as Star, is a kick-ass CIA agent. But what's different about her is that she's a shape shifter vamp--from the Revolutionary War era--in a new covert branch of the ag...

Cambria Cambria Series Book 1

By Theresa Oliver

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The Butterfly Who Didn t Want to Fly

By Oliver Theresa Oliver Trace

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A Horse Named Dog

By Theresa Oliver

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Crystal the Christmas Angel

By Theresa Oliver

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13 Tales of the Paranormal

By Stephen De Marino, Firefly Wisp, Susan Harris, Roy Hudson, Theresa Oliver, Jana Boskey, J S Wilsoncroft, Rebecca Nolan, Caitlin McColl, J B Sullivan

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Fae Wish

By Theresa Oliver

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Whiskey River

By Theresa Oliver, Hot Tree Publishing

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Mail Order Husband

By Theresa Oliver, Hot Tree Publishing

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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.