Frank Duffy Books

Bennetts Associates Four Commentaries

By Peter Carolin, Richard Weston, Vivien Lovell, Francis Duffy

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Weirdbook 34

By Douglas Draa, Adrian Cole

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Black Ink Horror Issue 7

By Philip Roberts, Aaron French, Michael McBride, Erik Johnson, Frank Duffy, Pete Mesling, David Greske, John Boden, Anthony Rapino, Vince Darcangelo, Lorna Keach

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The premier horror fiction and illustration journal is back with it's seventh issue. This issue features 11 new tales of horror fiction and 22 full-page pen-and-ink illustrations. Black Ink Horror...

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.