Michael Mignola Books

Baltimore

By Michael Mignola, Nancy Holder, Mike Mignola

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Wolverine

By Michael Mignola, Bob Wiacek, Walter Simonson

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Hellboy.

By Michael Mignola

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After leaving the Bureau for Paranormal Research and Defense, Hellboy's travels briefly to Africa, then to the bottom of the ocean. where an he is forced to either accept his role in the coming apo...

Ironwolf Fire of the Revolution

By Michael Mignola

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Hellboy

By Michael Mignola, Mike Mignola

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Ghost Hellboy Special

By Michael Mignola, Mike Mignola

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Hellboy

By Michael Mignola, Mike Mignola, John Byrne

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Zombieworld

By Michael Mignola, Pat McEwon, Mike Mignola, Pat McEown

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Hellboy

By Michael Mignola, Mike Mignola

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Hellboy

By Michael Mignola, Mike Mignola

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A story of Hellboy, a creature summoned by a sorcerer working for Hitler in 1944.

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.