Gregg R. Luke Books

Sacred Voyage

By Gregg R. Luke

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Altered state

By Gregg R. Luke

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Homer and Morgan Winegar believe they may have finally found happiness in the quiet college town in which they have settled. Perhaps now in their new life together with Morgan's nine-year-old son,...

Bloodborne

By Gregg R. Luke

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Research epidemiologist Dr. Erin Cross becomes the target of a sinister organization that seeks to use her vaccine to develop a deadly bio-weapon called the Armageddon Virus. Her only hope of stay...

Deadly undertakings

By Gregg R. Luke

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Being an assistant to the state medical examiner in Salt Lake City might sound like a dead-end job, but Rebekah Smith loves the mystery and challenge of determining the cause of death in the bodies...

Twisted fate

By Traci Hunter Abramson, Stephanie Black, Gregg R. Luke

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Hunted: Young Reagan has simply seen too much. She knows her abusive stepfather will stop at nothing to silence her and quickly realizes that escape into the murky forest is her only hope of surviv...

The healer

By Gregg R. Luke

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Shortly after his arrival in Wales, Chris rescues a victim of an horrific accident of one of the victims and unexplainably heals the victim's broken bones with his touch. Then he is approached by a...

Red Cicada

By Gregg R. Luke

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Infected

By Gregg R. Luke

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Hunter s Son

By Gregg R. Luke

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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.