Damian Duffy Books

Parable of the Sower

By Octavia E. Butler, Hopkinson Nalo, John Jennings, Damian Duffy

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Kindred A Graphic Novel Adaptation

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Kindred A Graphic Novel Adaptation

By Octavia E. Butler

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Baaaad Muthaz

By Mark Gerald Repaja, David Brame, Bill Campbell, Damian Duffy

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Black comix returns

By John Jennings

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In 2010, Professor John Jennings and Dr. Damian Duffy compiled and published a 176-page collection of art and essays celebrating the vibrant African American independent comics community. Black Com...

La parabola del sembrador

By Ernest Riera, John Jennings, Damian Duffy

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Parentesco

By Octavia E. Butler, John Jennings, Maria Barbado Mujica, Damian Duffy

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Dead Run

By John Jennings, Adam Mansbach, Damian Duffy

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Black comix

By Damian Duffy

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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.