Betsy Duffey Books

How to Be Cool in Junior School

By Betsy Duffey

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Coaster

By Betsy Duffey

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While secretly building a roller coaster in the woods, twelve-year-old Hart tries to come to terms with his parents' divorce and his mother's new relationship with a television weatherman.

The Math Wiz

By Janet Wilson, Betsy Duffey

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Does "Math Wiz" have to equal "Sports Dud"?Marty Malone thinks no problem is too complicated for him. Then he starts third grade--and learns that being a math wiz won't stop him from getting picked...

Virtual Cody

By Betsy Duffey

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Lucky in the doghouse

By Betsy Duffey

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Cody's Secret Admirer

By Betsy Duffey

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Cody Unplugged

By Betsy Duffey

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Fur-ever yours, Booker Jones

By Betsy Duffey

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Twelve-year-old Booker Jones turns to his writing once again to deal with the stress of his seemingly insensitive parents' decision to vacation together, leaving family and laundry behind.

Camp Knock Knock

By Betsy Duffey

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Willie is king of the knock-knock jokes at summer camp, but to retain his title he must win the great riddle contest against Crow, who is best at everything.

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.