Robert Doherty Books

Psychic Warrior: Project Aura

By Robert Doherty, Doherty Robert.

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Area 51: Nosferatu

By Robert Doherty

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Area 51: The Mission

By Robert Doherty

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Area 51: Nosferatu

By Robert Doherty

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THE SHADOWS OF HISTORY ARE THEIR HOME.THE BLOOD OF HUMANS IS THEIR SUSTENANCE.NOW THE FUTURE BELONGS TO THEM....It began at the dawn of history, when a darkness rose from deep within an Egyptian to...

Area 51: Excalibur

By Robert Doherty

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EXCALIBUR: LOST RELIC. LEGENDARY TALISMAN. ULTIMATE WEAPON.Once thought of as myth, the legendary sword of King Arthur is now a fiercely pursued reality--the most important artifact in a worldwide...

Elementary: The Ghost Line

By Adam Christopher

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summons to a bullet-riddled body in a Hell’s Kitchen apartment marks the start of a new case for consulting detectives Sherlock Holmes and Joan Watson. The victim is a subway train drive...

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.