Paul Norlen Books

Swedish Seattle WA

By Paul R. Norlen, Paul Norlen

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Open Grave

By Paul Norlen, Kjell Eriksson

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The Wonderful Adventure of Nils Holgersson

By Paul Norlen, Bertil Lybeck, Selma Lagerlof

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Scandinavia’s best-loved children’s classic, from the first female writer to win the Nobel Prize in Literature A Penguin ClassicNils Holgersson is a naughty boy who tortures animals and never liste...

Wonderful Adventure of Nils Holgersson

By Paul Norlen, Selma Lagerlof

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Between Summer s Longing and Winter s End

By Leif G. W. Persson, Paul Norlen

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Intruder

By Paul Norlen, Hakan Ostlundh

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Oslo Conspiracy

By Asle Skredderberget, Paul Norlen

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Hell Is Open

By Gard Sveen, Paul Norlen

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Swedish Seattle

By Paul Norlen

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Hunting Game

By Helene Tursten, Paul Norlen

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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.