Colleen Sullivan Books

Money Market Fund Primer

By Colleen Sullivan

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High Risk, High Reward Investing

By Colleen Sullivan

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Pms

By Ronald Norris

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PMS Premenstrual Syndrome

By Colleen Sullivan, Ronald V. Norris MD

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The VW Connection: 2

By Mary W. Sullivan, Colleen Sullivan

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Hoping to find a girlfriend for his older brother so his brother won't leave their newly-acquired family farm eleven-year-old Gordon checks out every female VW owner in Huntsville.

Earthquake 2099

By Colleen Sullivan

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Roughing It In Rubber

By Colleen Sullivan

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What s This about Pet

By Colleen Sullivan

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Brian Foot in Mouth

By Colleen Sullivan

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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.