The main ProTools screen is divided into several sections.

The open space in the middle of the screen is for laying audio tracks. With ProTools you can lay down many tracks, which you can then mix and fade between to produce your audio piece.

At the top of the screen is a timeline. It looks like this:

You can use the timeline to keep track of the overall length of your project or to know where you are at any given time in an audio piece.

To the right is the audio bin, which is where ProTools stores the raw audio files you've imported from a minidisc recorder, a CD, etc.

You'll also see a box on the screen with buttons like you'd find on a cassette deck.

This is the transport panel, and is designed like old analog equipment to allow you a familiar way to navigate through your audio piece.