Michael Lummis Books

Welcome Comfort

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Welcome Comfort, a lonely foster child, is assured by his friend the school custodian that there is a Santa Claus, but he does not discover the truth until one wondrous and surprising Christmas Eve.

Serious Sam Official Strategy Guide

By BradyGames, Michael Lummis

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Contra

By BradyGames, Michael Lummis

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Star Trek Elite Force II official strategy guide

By Rick Barba

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X2 Wolverine s Revenge Official Strategy Guide

By BradyGames, Michael Lummis

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Soul Calibur 2 Official Fighter s Guide

By Michael Lummis, Paul Edwards

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Wolverine s Revenge Official Strategy Guide Cover PS2 XBOX Gamecube.

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Neverwinter nights

By Michael Lummis

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Final Fantasy XI Online Official Strategy Guide Fall 2003 Version

By BradyGames, Michael Lummis

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Soul Calibur II Official Fighter s Guide

By Michael Lummis

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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.