Howard Hendrix Books

Spears of God: A Novel

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As competing factions launch a campaign to find and seize control of priceless extraterrestrial meteorites, killing anyone in the way to steal the rocks for their rumored power, none of the thieves...

The Outer Limits

By Howard Hendrix, Harlan Ellison, Diane Duane, Richard A. Lupoff

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The Outer Limits Volume One Outer Limits

By John M. Ford, Howard Hendrix, Harlan Ellison, Diane Duane

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Onde stationnaire

By Howard Hendrix, Guy Abadia

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Orbital Park

By Howard Hendrix, Guy Abadia

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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.