Bob O Connor Books

The Virginian Who Might Have Saved Lincoln

By Bob O Connor

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The U.S. Colored Troops at Andersonville Prison

By Bob O Connor

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103 p. : 21 cm

A house divided against itself

By Bob O Connor

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Tells the story of John Wesley Culp of the 2nd Virginia, Stonewall Brigade and his brother, William Esaias Culp of the 87th Pennsylvania, who fought against each other during the U.S. Civil War in...

Countdown to West Virginia statehood

By Bob O Connor

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Chronicles West Virginia's journey to becoming the 35th state on June 20, 1863.

Health Fitness Over 50

By Bob O Connor Wells, Christine Wells, Bob O Connor

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Health Fitness Over 50

By Christine Wells, Robert O Connor, Bob O Connor

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Coaching Football

By Tom Flores, Bob O Connor

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Puppets of Political Propaganda Time to Pull Our Own Strings

By Bob O Connor

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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.