Before you go through a foreign country - or even a new city in your own country - it's a good idea to get a lay of the land first. Even with GPS, it can be helpful to have a preview before jumping into the situation.
Same thing goes for new software. It can be overwhelming to see all the new tools all at once without a "roadmap." This is that roadmap! Get acquainted with the interface (what you see on the screen) so that you feel more comfortable navigating this new software, and so you don't miss out on all the great features!