David Kaler Books

Action Heroes Archives, Vol. 1

By Joe Gill, Steve Ditko, Blake Bell, Frank McLaughlin, Rocco Mastroserio, David Kaler

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Before the Creeper, before Hawk and Dove, even before co-creating Spider-Man, one-of-a-kind comic book artist/writer Steve Ditko illustrated his first super hero; the Cold War adventures of the nuc...

Action Heroes Archives Vol. 2 DC Archives Edition

By David Kaler

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Wolf Beneath the Tree

By Mike Carey

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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.