Mitchell Breitweiser Books

Phantom Jack

By Jaime Jones, Mitchell Breitweiser, Michael Sangiacomo, Sean McArdle, Brett Barkley

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Comic fantasy artist s photo reference

By Buddy Scalera

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Comic artist s photo reference

By Buddy Scalera

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Comic & Fantasy Artist's Photo Reference

By Buddy Scalera

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Created specifically for comic book and fantasy artists, the Colossal Collection of Action Poses features page after page of energetic, high quality, artfully composed reference photos. This isn't...

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.