Roy Macgregor Books

Home Game

By Roy Macgregor, Ken Dryden

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Home Game

By Roy Macgregor, Ken Dryden

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A Loonie for Luck

By Roy Macgregor

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A Loonie for Luck

By Roy MacGregor

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In February 2002, the greatest hockey teams this country could muster headed to Salt Lake City to compete in the Winter Olympics. Our men and women hoped to go all the way to the finals, but it had...

The Complete Screech Owls, Volume 5

By Roy MacGregor

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Celebrating ten years and more than one million books in print!New four-in-one edition!The first four Screech Owls mysteries are now collected in one volume:#17 — The Secret of the Deep Woods...

The Seven A.M. Practice

By Roy Macgregor

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Escape

By Roy Macgregor

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Escape

By Roy Macgregor

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Screech Owls Box Set Vol 13 15

By Roy Macgregor

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Screech Owls 21

By Roy Macgregor

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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.