Matt Doeden Books

In popular dragon legends, dragons breathe fire and hoard treasures. But many kinds of dragons appear in stories from all over the world. What do these dragons eat? Where do they live? From dragons...

Dragons in mythology

By Matt Doeden

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You may think all dragons are fire-breathing beasts that live in caves. But from casting magic spells to hoarding piles of treasure, there's more to dragons than meets the eye. Explore the differen...

Real world dragons

By Matt Doeden

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Dragons are myths from stories long ago, aren't they? But dragon legens started somewhere. Explore the world of animals and find out which ones are most like the dragons from your favourite myths.

Can You Survive Extreme Mountain Climbing

By Matt Doeden

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Can you survive the desert

By Matt Doeden

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The burning sun beats down on your skin. Endless hills of sand surround you. You are trying to survive in one of the most dangerous areas in the world the desert. Will you: Struggle to find help in...

The U.S. Air Force

By Matt Doeden

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The U.S. Army

By Matt Doeden

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The U.S. Coast Guard

By Matt Doeden

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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.