The Knock-Out card-counting system eliminates the mountain of mental arithmetic necessary to win at blackjack. The scientifically devised unbalanced K-O count can be used profitably anywhere blackjack is played: Las Vegas, Atlantic City, Mississippi, riverboat casinos, Native American casinos, the Bahamas, and on cruise ships. This third edition, revised and expanded, is now easier to use than ever. Step into the ring and learn to: Implement an abbreviated system--the "K-O Rookie"-- that's powerful enough to yield a player advantage and simple enough to be mastered in a few hours. Advance to a profession-level system--the "K-O Preferred"--which performs on par with the most sophisticated systems on the market. Win the cat-and-mouse game between the casinos and the players.