Jay Connolly Books

Dancewater Blues

By Jay Connolly, James Ross Connolly

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Dwight D. Eisenhower Man of Many Hats

By Kenneth M. Deitch, Joanne B. Weisman

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An illustrated biography of the four-star general who became the thirty-fourth president of the United States, from his childhood in Kansas, through his military career to his two terms in the Whit...

Rough Diamond

By Jay Connolly

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Talent in the Legal Profession

By Anne Harnetty, Jay Connolly, Jean Baptiste Lebelle, Catherine McGregor, Moray McLaren

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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.