Jim O Connor Books

Que Fe Pompeya

By John Hinderliter, Jim O Connor

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Shadow ball

By Geoffrey C. Ward

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What Was the Vietnam War?

By Jim O Connor Illustrated By Tim Foley

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Learn how the United States ended up fighting for twenty years in a remote country on the other side of the world.The Vietnam War was as much a part of the tumultuous Sixties as Flower Power and th...

What was the Vietnam war?

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Que fue Pompeya

By Jim O Connor

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La mañana del 24 de agosto, 79 dC, parecía como cualquier otro en la ciudad romana de Pompeya. Así que nadie estaba preparado cuando el cercano volcán Monte Vesubio repentinamente estalló, cenizas...

What Were the Twin Towers?

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Discover the true story of the Twin Towers—how they came to be the tallest buildings in the world and why they were destroyed.When the Twin Towers were built in 1973, they were billed as an archite...

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.