Brian Kennelly Books

Doors of Mercy

By Jeffrey Kirby Brian Kennelly

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EU Competition Law

By David Vaughan, Philip Riches, Sarah Lee, Brian Kennelly

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Divine Mercy for Children

By Vinny Flynn, Brian Kennelly

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Queen of Heaven

By Rick Rotondi, Brian Kennelly

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To the Heights

By Brian Kennelly

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"Enter the heart of a passionate young man, who in his brief life reached the heights of adventure, friendship--and sanctity. Born to a wealthy family in Turin at the dawn of the 20th century, Pier...

The Island of Two Trees

By Brian Kennelly

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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.