Dan Armstrong Books

Taming the Dragon

By Dan Armstrong

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The Book of Spam

By Dan Armstrong, Dustin Black

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Just in time for SPAMs triumphant 70th anniversary comes this full-color, totally illustrated, and utterly irreverent celebration of the worlds favorite canned meat. 600 full-color and b&w illustra...

Chain of Souls

By Dan Armstrong

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Prairie Fire

By Dan Armstrong

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Eyes of Archimedes Book II

By Dan Armstrong

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Eyes of Archimedes III

By Dan Armstrong

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Cornelia

By Dan Armstrong

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Jewel Case

By Dan Armstrong

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Book of Spam

By Dan Armstrong, Dustin Black

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Adventures of a Real Life Cable Guy

By Dan Armstrong

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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.