Mike Madrid Books

The Supergirls

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A cultural history of comic book heroines. Is their world of fantasy different from our own-- or an alternative saga of modern American women?

Comic book superheroines bend steel, travel across time and space, and wield the mighty forces of nature. These powerful females do everything that male heroes do. But they have to work their wonde...

Black Angel Collection

By Mike Madrid

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Spider Widow Collection

By Mike Madrid

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Mysta of the Moon Collection

By Mike Madrid

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Wildfire Collection

By Mike Madrid

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Supergirls

By Mike Madrid

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Latino Century

By Mike Madrid

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Latino Century

By Mike Madrid

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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.