Gray Morrow Books

From the fetid of the swamps of the south comes the Man-Thing! The brilliant Dr. Ted Sallis’ progress on a new Super-Solider Serum gained the envious attention of A.I.M. One untested injection and...

Creepy Archives Volume 2

By Others, Written By Archie Goodwin, Others Illustrated By Frank Frazetta Reed Crandall Gray Morrow Steve Ditko Alex Toth Johnny Craig

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The second bone-chilling volume of Creepy Archives is now available in a value-priced paperback edition, showcasing some of most harrowing stories of horror, murder, and supernatural mayhem in comi...

John Carter of Mars Weird Worlds

By Gray Morrow, Howard Chaykin, Joe Orlando, Marv Wolfman, Murphy Anderson

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Guts An Illustrated Novel

By Gray Morrow, Michael Golden, Byron Preiss

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Gray Morrows Orion

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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.