This is the best animated American series of all time. There are others that are good, but this introduces very serious themes to children in understandable ways, which in my opinion, is best for childhood development. Aside from this, it's so great! It will make you laugh, cry, and ponder your connection with the world. Go watch it; I still do at age 29! I consistently relive these memories by watching other react to the series and see them join the ATLA family. As an adult, I still see things that I hadn't as a child. I can't wait for it to come back to Netflix US so I can watch it over and over again.