Kjell Ola Dahl Books

The Man in the Window

By Kjell Ola Dahl

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Lethal investments

By Kjell Ola Dahl

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"A string of murders sucks the Oslo Detectives into a maelstrom of dark secrets in the latest from the master of Norwegian crime writing. Award-winning author K.O. Dahl has achieved international a...

The Fourth Man: A Thriller

By Don Bartlett, K.O. Dahl

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The Last Fix: A Thriller

By Kjell Ola Dahl

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When the corpse of Katrine, a recovering drug addict, is discovered, an intricate plot is exposed, juxtaposing the self-delusion of drug addicts with the more complex self-delusions of the well-res...

The fourth man

By K. O. Dahl

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Man in the Window

By K. O. Dahl Kjell Ola Dahl KO Dahl Kjell Ola Dahl

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The last fix

By Kjell Ola Dahl

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Lethal investments

By Kjell Ola Dahl

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Gripping and well plotted Scandinavian crime from a master, for all fans of Jo Nesbo.

Little Drummer

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Sister

By James Lailey, Kjell Ola Dahl

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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.