Robert James Luedke Books

Eye Witness

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Forensic Archeologist, Dr. Terry Harper, is among the 30 million people in the U.S. that claim, no religious affilication. He is known intenationally as the Bone-Man, through his TV specials on Ar...

Eye Witness

By Robert James Luedke

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Caught up in an apparent act of terrorism while visiting Jerusalem, forensic archeologist Terry Harper, experiences the birth of Christianity through the eyes of someone who was an actual Eye Witne...

Rise of the Apostle

By Robert James Luedke, Michael Lagocki, Lee Moyer

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Eye Witness

By Robert James Luedke

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Archeologist, Terry Harper, has survived two assassination attempts and with the help of a mysterious ex-CIA operative, hopes to avoid a third. Through this journey, Harper is taken back to the fi...

Unknown God Eye Witness

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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.