John MacLachlan Gray Books

Not Quite Dead

By John MacLachlan Gray, Gray John

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The Fiend in Human: A Victorian Thriller

By Gray John

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"London, 1852: the world's capital city of crime; a city where murder and hangings are public entertainment, where reporters and balladeers vie with one another to be first to scoop the next grisly...

The fiend in human

By Gray John

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Billy Bishop goes to war

By Gray John

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Billy Bishop goes to war

By Gray John

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The White Angel

By John MacLachlan Gray

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Vile Spirits

By John MacLachlan Gray

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Tarabas

By Joseph Roth

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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.