Graham Masterton Books

The hymn.

By Graham Masterton

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Spirit

By Graham Masterton

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Flesh and Blood

By Graham Masterton

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The house that jack built

By Graham Masterton

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When he and his wife stumble across a derelict house, "Valhalla", Craig Bellman becomes fascinated by it, even to the extent of trying to buy it, regardless of local tales which say the house is do...

The Chosen Child

By Graham Masterton

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The Sleepless

By Graham Masterton

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Hair Raiser

By Graham Masterton

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Famine

By Graham Masterson

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Plague

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Plague

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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.