This is rather a strange book. Prosapio sort of guides the reader through the process of reading Tarot without reference to the cards' traditional or stand-by meanings. Just look at the card, he says, and intuit its meaning. Lay seven cards out, for example, and read them like a story, without any necessary knowledge of Tarot tradition. I found that I disagree to an extent; I feel that the traditional meanings of the cards help to guide a reading successfully, although intuition plays a very vital role.
So I appreciate Prosapio's approach, and I agree that in theory one could give a successful reading this way. Perhaps if you read the book and practice and practice and practice at it, you might be able to get comfortable with the method. Unfortunately--and this is the key downfall of the book--Prosapio uses only one variety of deck, and he seems to insist (perhaps because the publisher of the book also publishes the deck in question?) that this deck holds all the keys to his method of interpretation.
In practice, the deck (which I will not name here--the book itself does adequate advertising) does not serve the purpose of Prosapio's method, being unimaginative and lacking dynamic imagery. If you get this book, or find it somewhere, you might do better applying Prosapio's ideas to a deck with more diverse and dynamic imagery.
It is noble and right to trust one's intuition when reading the Tarot, but I might sum up this book for you, and save you the time of reading it, by saying, "Trust your intuition when you read the Tarot; look at the cards and listen to them; they will guide you; there is nothing else necessary."
Does that intrigue you? If so, I would still send you elsewhere to explore it. This book is largely empty, and it's a shameless advertisement for the Tarot deck upon which Prosapio (or the publisher?) insists at every turn of the page.