Offutt Andrew J. Books

Shadows Out Of Hell

By Andrew J. Offutt

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Iceworld

By Andrew J. Offutt

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Star slaver

By Andrew J. Offutt

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Assignment: Hellhole

By Offutt Andrew J., Andrew J. Offutt, John Cleve

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RETIRED COP ALANNI KEOR BOUGHT THE FARM, ... LITERALLY!She was happy farming with her partners—an Outie and a Jarp—until a powerful politician balckmailed her into becoming on interplanetary thief....

The planet murderer

By Andrew J. Offutt

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The Iron Lords

By Andrew J. Offutt

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Sword of the Gael

By Andrew J. Offutt

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The Sword of the Gael Cormac Mac Art Series No 5

By Andrew J. Offutt

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The Undying Wizard

By Andrew J. Offutt

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When Death Birds Fly

By Robert E. Howard, Andrew J. Offutt

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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.