If you want to read Norwegian books you can get them from
http://www.digitalbok.no/, however, as is most often the case once you go outside the US, Kindles aren't supported (because they aren't sold in those countries) so you need to educate yourself in the art of "format shifting". It is not that hard to do, but it is outside the scope of this site to teach you how to do it. But if you do a search here on "format shifting" you will find a lot of useful hints.