Johansen, Roy Books

Shadow Zone

By Roy Johansen, Iris Johansen, Johansen Iris, Johansen, Roy

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From Publishers Weekly This disappointing sequel to the Johansens' Silent Thunder (2008) centers on the ancient city of Marinth, submerged in a massive tsunami 4,000 years ago and lying a quarter...

The Answer Man

By Roy Johansen, Johansen, Roy

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The search for truth is no match for the power of temptation. They call him the Answer Man. As a lie detector operator, he's an expert in the science of truth and the art of lies -- and both are...

Deadly Visions

By Roy Johansen, Johansen, Roy

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SUMMARY: A killer crosses over…Ace magician turned ace police detective Joe Bailey, a.k.a. the Spirit Basher, needs all his expertise when he’s teamed up with psychic investigator Monica Gaines to...

Deadly Visions

By Roy Johansen, Johansen, Roy

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Sight Unseen

By Roy Johansen, Iris Johansen, Johansen Iris, Johansen, Roy

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She was safe in a world of darkness. Now danger threatens in the cold light of day Before the experimental surgery that gave her sight, Kendra Michaels developed her other senses to an amazing capa...

Beyond Belief

By Roy Johansen, Johansen, Roy

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SUMMARY: TheNew York Times Book Reviewhailed Roy Johansen's debut,The Answer Man, as "offbeat [and] fascinating." Now the Edgar Award winner and Shamus Award finalist once again "keeps the pages tu...

Deadly Visions

By Roy Johansen, Johansen, Roy

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Sight Unseen: A Novel

By Roy Johansen, Iris Johansen, Johansen Iris, Johansen, Roy

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Sight Unseen: A Novel

By Roy Johansen, Iris Johansen, Johansen Iris, Johansen, Roy, Iris/ Johansen, Roy Johansen

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Silent Thunder: A Novel

By Roy Johansen, Iris Johansen, Johansen Iris, Johansen, Roy

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Number-one bestselling author Iris Johansen teams up with Edgar Award winner Roy Johansen and the result is an explosive, tour-de-force thriller. . . . It was the assignment of a lifetime. . . . Br...

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.