Luke Johnson Books

The key to making money in the new stock market

By Luke Johnson

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The crash of '87 and how to profit from it

By Luke Johnson

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"Running your own business is nowhere near as tough as you might think. So what are you waiting for? Luke Johnson is Britain's busiest tycoon, with a personal fortune estimated at £120 million. Fro...

Start it up

By Luke Johnson

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The Entrepreneur s Guide to Buying and Selling a Business

By Luke Johnson

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Player s Guide to Eberron Dungeons Dragons d20 3.5 Fantasy Roleplaying Eberron Supplement

By Steven Brown, Luke Johnson, James Wyatt, Keith Baker

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Describes important locations, events, organizations, races, and features of the Eberron campaign setting, organized in an accessible and easily digestible format so that players can use the book a...

Thirty Ways to Make Money in Property 30 Ways to Make Money

By G. Gill, Luke Johnson, J. Johnson

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30 ways to make money in franchising.

By Luke Johnson

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Betting to Win

By Luke Johnson, Hugh Osmond

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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.