Robert A Hilliard Books

The Circus Is In Town: A Baseball Odyssey

By Robert A Hilliard, Robert A Hilliard, Egle Bartolini

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A family vacation in Reading, PA, to see a baseball game, made notable by a state-line billboard that read: "Welcome to Pennsylvania. America starts here." What did Pennsylvania have that New Jerse...

What Are The Odds? The Calculus Of Coincidence

By Robert A Hilliard

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Circus Is In Town

By Robert A Hilliard, Robert A. Hilliard, Egle Bartolini

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Life s Elusive Horizon

By Robert A. Hilliard

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All in ... Beware the Cross Currents

By Robert A. Hilliard

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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.