Unfortunately Elib's books won't work on a Kindle since they're mostly DRMd epubs. You can convert epubs to what a Kindle uses with the program Calibre
http://calibre-ebook.com/ I don't know if it will work with the DRM. There are also some free books in Swedish for Kindle in the Gutenberg Project
http://www.gutenberg.org/browse/languages/sv I also found that the Swedish ebookstore Bokon
https://bokon.se/kindle/ sells ebooks in Swedish that they format for a Kindle.