Interesting. I've never cooked with truffle, and I'd have assumed it is artificial. But this article is making me want to try it.
What are some beginner uses?
You mean truffle oil or actual truffle?
With the oil I guess you can try making a truffle mayo dipping sauce like the one served with the fries at Pardes.
If you can get your hands on an actual truffle, try shaving some on top of a risotto.