iTunes 10 for Mac: iTunes overview
iTunes has everything you need to be entertained—whenever you want, wherever you are.
With iTunes, you can:
Organize and play your music and video.
Find music, movies, TV shows, audiobooks, free podcasts, and more in the iTunes Store.
Set up your iPhone, iPod, or iPad, and add music, video, and more to it.
Everything happens in this one window: