Mary W. Sullivan Books

Chili Peppers

By Mary W. Sullivan

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Jokers Wild

By Mary W. Sullivan

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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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The indestructible old-time string band

By Mary W. Sullivan

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Five boys who form a string band become unknowingly involved with some criminals who move in next door to the old house in which they practice.

Bluegrass Iggy

By Mary W. Sullivan

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Feeling ugly and friendless, fourteen-year-old Iggy tries to become part of a bluegrass band as a banjo player.

What's this about Pete?

By Mary W. Sullivan

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A young boy worries that he isn't normal because he is small for his age and enjoys such diverse activities as sewing and motorcycling but finally comes to realize what is really important in bein...

Brian-Foot-in-the-Mouth

By Mary W. Sullivan

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A young boy tries to control the outspokeness that continually lands him into trouble.

Bluegrass Iggy

By Mary W. 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.