The Tableau dashboard software is a truly powerful visualization tool. Using their Public Verison, I was able to create a very powerful dashboard visual in about an hour. The paid version at the time of this post is $70/month but if you don’t mind saving to their public site, the free option is just fine. Don’t worry if you’re just starting out: Tableau offers users the option of hiding visuals and data from view if you’re not ready go public.