If you have the means and opportunity to see Barcelona at Camp Nou, and you are a football fan, you should do it. Obviously. I visited Barcelona recently, and this seems like a great time to give you, a potential visitor, some advice you might find helpful if you also want to see Barça live.
Buying Tickets
The best place to buy tickets is the official website. Sure, you can get tickets from resellers and the like, but unless you’re getting a good discount or the game is sold out, you’ll be fine.