After living in Las Vegas, and Reno for over 20 years, I've seen tons of people write about secrets to winning at slots. About 95 percent are completely worthless. This book does not tell you where to win or how. Most of his "Tips" are a lot of junk, mostly common sense. If a machine isn't hitting after you hit the button fifty times, the chances that it will are slim. Mr. Cardoza never gives any real, solid winning advice through the whole book. If you've never in you life played a slot read the book. It is good for people who don't know anything about slots. If you have played slots, don't waste your money on this book. Understand that Vegas, Reno, Atlantic City, Laughlin, and others are built on SLOTS not the table games, not the pricey shows, SLOTS. Casinos in Las Vegas make about 50-75% of their revenue on the SLOTS. Keep that in mind when you go. I love playing the slots, and I have won several thousand dollars, but not by employing anything in this book. Use the money you want to spend on this book and get a book on Black Jack and Poker. Which incidentally are the best paying games in the casino. Problem is they take a long time to master, but the pay off is much greater.