Harry Stephen Books

The Sharkskin Book

By Harry Stephen, Harry Stephen Keeler, Keeler.

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They’ve got Ogden Farlow dead to rights! Under the third degree he admitted that the body, with a bullet from his gun in its skull, is lying buried in his basement. It’s the most open-and-shut case...

The Strange Will

By Harry Stephen, Harry Stephen Keeler, Harry Stephen, Hazel Goodwin Keeler

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Farrel Ivins may be standing on the gallows with his neck in a noose, but he's not worried. He's taken a drug that makes it impossible to contemplate his future, and besides, he hasn't given his "f...

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.