Simon R. Green Books

In the Nightside—that hidden area in the middle of London where time stands still at three A.M. and the sun won’t rise to refute it—nightmares go walking in borrowed flesh, and no...

Deathstalker Return

By Simon R. Green

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Sharper Than A Serpent's Tooth

By Simon R. Green

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My name is John Taylor. I’m a PI for hire in the Nightside, the dark and corrupt city within the city of London. Where the sun never shines and where pleasure and horror are always on sale&md...

The Unnatural Inquirer

By Simon R. Green

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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.