As I remember it . . .
I believe you go to the tarot.com and ask for a reading. They don't have demo software to download but the program will give you a reading using the same software that they sell.
The software has a number of decks that can be used. When you choose a deck and shuffle it, then read with it, the decks stays in whatever shuffled mix you left it in. If you then go to another deck, you can shuffle that deck and use it. If you go back to the first deck, it is not in perfect/new order, but has remained just as you shuffled it last -- like a real deck.
You can choose from several spreads, you can pick out cards from a fanned out display, you can select specific cards for a spread to see what the reading is like. You can save your spreads and readings or print them out. Readings for a card change context based on where it is in the spread. It is a nice software program to use for learning tarot or getting a reading for yourself. Dave