Michael Johnston Books

Content Points A

By Michael Johnston, John Johnston

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Content Points B

By Michael Johnston, John Johnston

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Content Points C

By Michael Johnston, John Johnston

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Contents Points Advanced Level

By Michael Johnston, John Johnston

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Heart of Dread

By Melissa De La Cruz

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Nat risked her life to reunite with her drakon in the defense of the Blue, but Wes, seeking his sister Eliza, is forced to rejoin the military, placing him and Nat on opposite sides of a war that c...

Heart of Dread

By Melissa De La Cruz

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Desperate to escape the dangers of the ruins of New Kandy, Nat and Wes must put their love to the ultimate test by chancing even more perilous surroundings in hopes of seeing their world reborn by...

Heart of Dread

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The fund raiser's guide to the Internet

By Michael W. Johnston

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This practical, nontechnical guide to fundraising on the Internet, written by an Internet veteran who's designed scores of successful money-making sites, describes not only how to set up an attenti...

The nonprofit guide to the Internet

By Michael W. Johnston

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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.