Jack Friend Books

Fort Morgan AL Images of America

By Bob England, Blanton Blankenship, Michael Bailey, Jack Friend

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Fort Morgan

By Jack Friend, Bob England, England Friend Bailey Blankenship

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"Immortalized by David Farragut's apothegm, "Damn the torpedoes, full speed ahead," the Battle of Mobile Bay remains one of history's great naval engagements, a contest between two admirals trained...

West Wind Flood Tide

By Jack Friend

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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.