With FCD, learning is easy and fun. With beautiful decks, this becomes even easier and more fun. What are the nicest decks that you stumbled upon? One of my favorites so far is the deck with the 50 U.S. States (it's also in the "Featured" section, but I don't know what that actually means). Since I discovered this one, I know all nicknames of all U.S. states and of course their capitals.
What are other beautiful cards available in the FCD Shared Library?