James T. DeKay Books

Meet Martin Luther King, Jr.

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Learn about the life of Dr. Martin Luther King Jr. with this revised edition of the popular Random House Step Up(TM) Biography of the great civil-rights leader and advocate for peaceful resistanc...

Left Handed Kids

By James T. De Kay, James T. DeKay

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The Left Handed Book

By James T. DeKay

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Natural Superiority of the Left Hander

By James T. Dekay

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Meet Martin Luther King, Jr.

Average: 0.00, 0 Ratings

Learn about the life of Dr. Martin Luther King Jr. with this revised edition of the popular Random House Step Up(TM) Biography of the great civil-rights leader and advocate for peaceful resistanc...

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.