Craig Schaefer Books

Bring the Fire

By Craig Schaefer

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Black Tie Required

By Craig Schaefer

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Down Among the Dead Men

By Craig Schaefer

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Hungry Dreaming

By Craig Schaefer

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Harmony Black

By Schaefer Craig Fantasy Fiction Writer

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Harmony Black is a special agent for the FBI, a practicing witch, and an operative for Vigilant Lock, an off-the-books program created to fight against supernatural threats. Harmony is called upon...

Ghosts of Gotham

By Craig Schaefer

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Loot

By Craig Schaefer

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Insider

By Craig Schaefer

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Any Minor World

By Craig Schaefer

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Any Minor World

By Craig Schaefer

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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.