Robert McKay Books

Opportunities in Your Own Service Business

By Robert McKay

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The running back

By Robert McKay

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An 18-year-old goes from a reformatory to a small town high school, joins the football team, and tries to put his life in order.

The Girl Who Wanted to Run the Boston Marathon

By Robert McKay

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The Girl Who Wanted to Run the Boston Marathon

By Robert McKay

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The Girl who wanted to run the Boston Marathon

By Robert McKay

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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.