John Matern Books

Treasure Island

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While going through the possessions of a deceased guest who owed them money, the mistress of the inn and her son find a treasure map that leads them to a pirate's fortune, as well as great danger....

The red badge of courage

By Stephen Crane

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During his service in the Civil War a young Union soldier matures to manhood and finds peace of mind as he comes to grips with his conflicting emotions about war. Includes abridged text, audio of t...

The adventures of Huckleberry Finn

By Mark Twain

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The adventures of a boy and his friend, an escaped slave, as they travel down the Mississippi River on a raft. Includes abridged text, audio of text, teacher guide, and test questions.

Treasure Island

By John Matern

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Red Badge of Courage

By Stephen Crane, John Matern

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Adventures of Huckleberry Finn

By John Matern

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Jack London Collection

By Jack London, John Matern

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Treasure Island

By John Matern

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Red Badge of Courage

By Stephen Crane, John Matern

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Adventures of Huckleberry Finn

By John Matern

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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.