Harrison Demchick Books

The Listeners

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"Before the plague, and the quarantine, fourteen-year-old Daniel Raymond had only heard of the Listeners. They were a gang, or at least that's what his best friend Katie's police officer father had...

Sword and the Songbird

By Harrison Demchick, Rafael Andreas, K. C. Causey

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Thw Sword and the Songbird

By Harrison Demchick, Rafael Andreas, K. C. Causey

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Saints and the Slaveholders

By Harrison Demchick, Rafael Andreas, K. C. Causey

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Saints and the Slaveholders

By Harrison Demchick, Rafael Andreas, K. C. Causey

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Psychedelic Turnpikes

By Harrison Demchick, Collin Johnson, Amber Johnson

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Listeners

By Harrison Demchick

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Listeners

By Harrison Demchick

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Ditch Kitty

By Harrison Demchick, Antoine Bouraly, Matt DeMazza, Asya Blue

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The Ditch Kitty

By Harrison Demchick, Antoine Bouraly, Matt DeMazza, Asya Blue

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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.