Kenn Thomas Books

Danny Casolaro's surviving notes provide part of the basis The Octopus: Secret Government and the Death of Danny Casolaro. This book also relies on interviews with key players in the tale, affidavi...

The Octopus

By Kenn Thomas, Jim Keith

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Cyberculture Counterconspiracy

By Kenn Thomas

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Cyberculture Counterconspiracy

By Kenn Thomas

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Popular Alienation

By Kenn Thomas

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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.