Craig Roberts Books

Hellhound
Hellhound

By Allen Appel, Craig Roberts

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The walking dead
The walking dead

By Craig Roberts

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The Walking Dead: A Marine's Story of Vietnam
One Shot One Kill
Combat Medic Vietnam Combat Medic
Police sniper
Police sniper

By Craig Roberts

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Angles on psychological research
Angles on applied psychology
Kill Zone
Kill Zone

By Craig Roberts

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JFK
JFK

By Craig Roberts

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Related Articles from our Blog

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.

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