Gemma Halliday Books

Spying in High Heels

By Gemma Halliday, Caroline Shaffer

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Homicide in High Heels

By Gemma Halliday

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Lethal bond

By Gemma Halliday

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"PI Jamie Bond knows there's corruption in the Los Angeles County D.A.'s office. What she doesn't know is how far it runs and if her on-again, off-again love interest, A.D.A. Aiden Prince, is invol...

Deadly in High Heels

By Gemma Halliday

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Alibi in High Heels

By Gemma Halliday, Caroline Shaffer

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Mayhem in High Heels

By Gemma Halliday, Caroline Shaffer

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Hey Big Spender

By Gemma Halliday, T. Sue VerSteeg

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Sherlock Holmes and the Case of the Brash Blonde

By Gemma Halliday, Kelly Rey

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Christmas in High Heels

By Gemma Halliday, Caroline Shaffer

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Sweetheart in High Heels

By Gemma Halliday, Caroline Shaffer

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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.