David Goyer Books

JSA

Average: 0.00, 0 Ratings

A recently reunited Justice Society of America faces some of its most fearsome foes in this second collection of classic stories from comics superstar Geoff Johns, one of the chief architects of th...

JSA, darkness falls

By David S. Goyer

Average: 0.00, 0 Ratings

Justice Society of America JSA

By David S. Goyer

Average: 0.00, 0 Ratings

Heaven s Shadow

By David S. Goyer, Michael Cassutt

Average: 0.00, 0 Ratings

JSA Omnibus Vol. 1

By Geoff Johns

Average: 0.00, 0 Ratings

Known for his groundbreaking work on Green Lantern, in 2000 Geoff Johns brought Justice Society of America characters rooted in the Golden Age of comics back to the forefront of comics.  Mixin...

Justice Society of America

By David S. Goyer, Geoff Johns

Average: 0.00, 0 Ratings

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.