If You Play Gin to Win, This Book Is Your Best Investment! During World War II, gin rummy became a national fad, famous as the game of movie stars and Hollywood players. Today, this card game continues to entertain, and it can also be played for profit. If you like to gamble a little when you play, The Secret to Winning Gin will pay for itself many times over. This book is not a how-to guide. It assumes that the reader is an active gin rummy player who wishes to improve his or her game. With The Secret to Winning Gin, you can expect to win more games than you lose...and if you're already an expert, you'll be able to hone your skills. Learn how to play every part of this classic game-not only the cards but the score, your opponent, your partner, the knock card, and, most importantly, how to keep the odds in your favor.