Joe Konrath Books

Life is pretty good for Lieutenant Jacqueline "Jack" Daniels of the Chicago Police Department. She's solved some of the city's toughest--and most high-profile--homicides. Her fiance, Latham, is on...

Cherry Bomb

By J. A. Konrath

Average: 0.00, 0 Ratings

Whiskey Sour

By Joe Konrath, J. A. Konrath

Average: 0.00, 0 Ratings

Rusty nail

By Joe Konrath, J. A. Konrath

Average: 0.00, 0 Ratings

When someone begins sending her snuff videos starring people that she knows who had been involved in one of her previous cases, Lt. Jacqueline "Jack" Daniels of the Chicago Police launches a person...

Bloody Mary

By Joe Konrath, J. A. Konrath

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.