Mike Butkus Books

Beginner s Guide

By Mike Butkus, Walter Thomas Foster

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The Art of Drawing

By Michael Butkus, Mike Butkus

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Discover the folklore and history of vampires, and learn how they were transformed from a ghoulish demon into a romantic charmer. Discover how to capture the vampire in pencil, acrylic and oil, and...

Como dibujar zombies How to Draw Zombies Fantasia Underground Spanish Edition

By Mike Butkus, Merrie Destefano

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How to draw zombies

By Mike Butkus

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How to draw vampires

By Mike Butkus

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How to Draw Fallen Angels

By Mike Butkus, Michelle Prather

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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.