Nathan Robert Brown Books

GET INSIDE GRIMM. NBC’s hit television series Grimm pits modern detective Nick Burkhardt of the Portland Police against a cast of terrifying villains—lifted directly from the pages of classic fairy...

The Mythology of Supernatural

By Nathan Robert Brown

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A look into the paranormal legends, lore, mythology, and monsters featured on the hit television show Supernatural. From angels to demons, The Mythology of Supernatural explores the religious roo...

The Complete Idiot's Guide to World Mythology

By Nathan Brown

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The Complete Idiot s Guide to Werewolves

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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.