[@Sigurd] 1. I love history and have been specifically interested in 19th-20th century politics, so why not read it? 
2. With the resurgence of nationalism across the world, it's intruiging to read and recognize the rhetoric and justifactions that's being used today and was used by people like Adolf Hitler back in the 20's, 30's and 40's. History truly repeats itself. 
3. It's [i]fun[/i] to read what he thought and meant, and then to go "you crazy bastard, calm down!"

You did? How come you ended up reading a norwegian book?