Graham Masterton Books

Red light

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An unknown killer is attacking the pimps of Cork. DC Katie Maguire's job is to find the killer. But can she bring the killer to justice, or will her conscience demand that the killer remain free...

Blood sisters

By Graham Masterton

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Katie Maguire never thought Ireland's nuns would need her protection ... In a nursing home on the outskirts of Cork, an elderly nun has been suffocated in her sleep. It looks like a mercy-killing--...

Living death

By Graham Masterton

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DS Katie Maguire is at a loss. Last year, she and her team destroyed the biggest drug trafficker in Cork. So how is the city's drug trade at an all time high? Katie can't focus on this until she's...

The painted man

By Graham Masterton

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Ghost music

By Graham Masterton

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The dead can't seek justice. Can they? - Gideon Lake, a successful composer, is immediately smitten by Kate Solway, who lives below him. They begin a passionate affair, and Kate invites him to Euro...

Basilisk

By Graham Masterton

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Medical researcher Nathan Underhill fails with his experiments to create mythical creatures through genetic engineering, but the discovery that someone else may have succeeded has dangerous and let...

Petrified

By Graham Masterton

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A stem-cell researcher and zoologist investigate sightings of flying monsters and whose only living witness is a little girl who claims to have seen the creature in her nightmares.

Headlines

By Graham Masterton

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Hymn

By Graham Masterton

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Hymn

By Graham Masterton

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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.