Walter Greatshell Books

Xombies

By Walter Greatshell

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Xombies Apocalypse Blues

By Walter Greatshell

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Xombies

By Walter Greatshell

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Mad skills

By Walter Greatshell

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After Maddy Grant suffers brain damage in an accident, scientists at the Braintree Institute decide to use a new technology to repair the injury. But repairing Maddy's brain isn't the only thing th...

Xombies

By Walter Greatshell

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"The final, climactic voyage of teenage Lulu Pangloss and the USS No-Name, a decommissioned nuclear submarine converted to a refugee vessel during the Agent X plague. Having been infiltrated by Age...

Terminal Island

By Walter Greatshell

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Henry Cadmus grew up on Catalina Island, a scenic vacationland off the Southern California coast. But Henry's experiences were far from idyllic. Today, even though Henry has seen firsthand the horr...

Tales of Jack the Ripper

By Ennis Drake, Ramsey Campbell, Laird Barron, Ann K. Schwader, Walter Greatshell, Alan M. Clark, Ross E. Lockhart, Joe R. Lansdale, Silvia Moreno Garcia, Gary A. Braunbeck

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Prisioneros Eclipse Spanish Edition

By Walter Greatshell

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Xombies

By Walter Greatshell

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Special Features

By Walter Greatshell

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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.