Mike Friedrich Books

Iron Man Epic Collection

By Mike Friedrich, Roy Thomas, George Tuska, Jim Starlin, Bill Everett

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Mockingbird

By Mike Friedrich, Herb Trimpe, Mark Gruenwald, Roy Thomas, Steven Grant

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IRON MAN EPIC COLLECTION: THE WAR OF THE SUPER VILLAINS

By Mike Friedrich

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A feud of epic proportions has been growing among the world's super villains! The mysterious Black Lama is pitting villain against villain, and the prize is ultimate power. This feud sets the Manda...

Showcase Presents

By Mike Friedrich

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Incompatible

By Mike Friedrich, Charlie Baber

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Showcase Presents

By Mike Friedrich, Neal Adams, Gerry Conway, Marv Wolfman

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Justice League of America Bronze Age

By Joe Giella, Mike Friedrich, Dick Dillin, Robert Kanigher, Dennis O Neil

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Cuteness Is Over

By Mike Friedrich, Karl Addison

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Marvel Masterworks The Invincible Iron Man Vol 9 DM Variant Vol 216

By Mike Friedrich

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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.