Duffy Brown Books

Mackinac Island is a peaceful summer resort town where everyone coasts through the streets on bicycles. But after someone sends a prominent local on her final ride, it's up to one resourceful visit...

Lethal in Old Lace

By Duffy Brown

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Tandem Demise

By Duffy Brown

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Wedding day and foul play

By Duffy Brown

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Reagan Summerside and Walker Boone are finally tying the knot. Except for the fushsia bridesmaid dresses and the coroner handing out business cards, all is well until a local auctioneer discovers a...

Tea Time with the Cozy Chicks

By Lorraine Bartlett, Duffy Brown, Cozy Chicks, Kate Collins, Ellery Adams

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Killer in Crinolines

By Duffy Brown

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It’s August in Savannah, Georgia—hardly the season for a traditional Southern wedding with hoopskirts and crinolines. One could die from the heat—or from a cake knife in the back....

Iced Chiffon

By Duffy Brown

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There’s always something to gossip about in Savannah, Georgia, and Reagan Summerside always seems to be in the middle of it. She’s busy enough running her consignment shop, The Prissy F...

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.