There are many different decks. Personally my own philosophy about Tarot and the way I use it is that the future is a broken mirror. You can see many different versions of an image in a broken mirror and finding the one that will be the path that the future takes is more of seeing what the general shared image is displayed. Unfortunately, since there is an infinite number of futures choosing the most common future is not always going to work.
In Tarot, it is more of a question. This is me now, these are the things that may affect me, this is the current likely turnout. The major Arcana of Tarot no matter what kind of deck begins with the 0 card generally known as the Fool. This fool represents us as a naive and innocent person doing things that were thought impossible because we knew no better, but it also represents ignorance and foolishness. Tarot cards always represent a duality with a positive virtue and a negative virtue.
Personally I like the Book of Thoth deck as it tells you what each major arcana card represents instead of having to memorize what they mean.
Since the 0 card is the fool and this represents you the next card is the first life lesson earned and learned. Each major arcana card represents things from our life that affect us and you can look up online somewhere the actual story that they represent.
I read tarot more as a meditative tool, I lay out my cards and when I look at them I observe and discern their meaning for me at that moment in time and occasionally object to the single turnout card's meaning. Objection usually doesn't hold out long though. The very act of a reading changes your future.