Move over Jane Austen, there is now another female author who will appear on currency. Hurrah for Astrid Lindgren and Sweden!
http://www.buzzfeed.com/alannaokun/the-author-of-pippi-longstocking-will-appear-on-swedens-mone
(and if you think Karlsson is underrated, you should try Ronia the Robber's Daughter, one of my all-time favorites!