Bob Garland Books

Derfflinger

By Bob Garland

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R.I.P. 37E: The Third Humboldt Prior Mystery

By Bob Garland

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Slaying The Red Slayer (Second Edition): The First Humboldt Prior Adventure (Humboldt Prior Mysteries)

By Bob Garland

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An intricate adventure and seldom what it seems. Humboldt Prior's first adventure is set in South America amid killing, vengeance, treachery, unexpected romance and freedom.

Derfflinger(Second Edition): The Second Humboldt Prior Mystery (Humboldt Prior Mysteries)

By Bob Garland

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sunken Warships, Super Computers, Archaic Weapons, And Stolen Treasure Encompass A Corporate Executive In A Web Of Ancient Treachery, Where Help May Not Be Help, Friends May Not Be Friends, And Suc...

The Elephant Mask: The Fourth Humboldt Prior Mystery

By Bob Garland

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the Elephant Mask Is A Thrilling Mystery Of Murders, Ancient Secrets, Treachery, Cutting Edge Computer Science,that The Hero Must Solve Or Die.

Tradedown

By Bob Garland

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Roughhouse on Woodhouse Avenue

By Bob Garland

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Woodhouse Avenue Follies

By Bob Garland

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Nonsense on Woodhouse Avenue

By Bob Garland

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Gary Gargoyle Story

By Bob Garland

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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.