John Lutz Books

Darker than night

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A killer dubbed "The Night Prowler" is terrorizing the citizens of New York City, slipping unseen into homes and committing murder.

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.

John Lutz Books

The Shadow Man

Lazarus man

Buyer beware

Bonegrinder

Torch

The Night Watcher

Darker than night

Fear the Night

Chill of night

In for the kill

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