Dennis O Neil Books

"Dennis O'Neil introduces Dick Grayson's brand new costume and career in Nightwing's first solo series! Nightwing flies solo as Dick Grayson uncovers new facts about the murder of his parents--evid...

Azrael

By Dennis O Neil

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"Batman: The Sword of Azrael depicts the origin of Jean Paul Valley, the man who one day replaces Bruce Wayne as Batman. The descendant of holy warriors, Jean Paul is forced into using his ancestra...

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.