Ken McDonald Books

Iron Man 2020

By Ken McDonald, Fred Schiller, Simon Furman, Tom Defalco

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Amazing Spider Man Epic Collection

By Peter David, Ken McDonald, J.M. DeMatteis, David Michelinie

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IRON MAN 2020 NEW PRINTING

By Ken McDonald

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Collects Amazing Spider-Man Annual #20, Machine Man (1984) #1-4, Death's Head #10, Iron Man 2020 #1, Astonishing Tales: Iron Man 2020 #1-6 and material from Astonishing Tales: Iron Man 2020 #1-6 &...

How to Acquire Your First Million Customers

By Chris Newton, Ken McDonald

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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.