Stieg Larsson at the top of Amazon kindle charts

I always think it is fun to see Swedes doing well. I am not an avid reader but was checking out the Kindle chart on Amazon.com to see if I should get the kindle app for our I pad. Stieg Larsson passed away in 2004, but his trilogy was at the top of the list. I knew the books were very popular, since several of my coworkers have asked me about them. Assuming I know everything since he is Swedish.  I have one of the movies, and really enjoyed it. It's in Swedish of course, but I think there are American versions in the works.