Popularity of Texas Holdem game

Texas Hold 'Em is one of the most popular forms of poker.[17][18] Texas Hold 'em's popularity surged in the 2000s due to exposure on television, the Internet and popular literature. During this time hold 'em replaced seven-card stud as the most common game in U.S. casinos.[19] The no-limit betting form is used in the widely televised main event of the World Series of Poker (WSOP) and the World Poker Tour (WPT).
Hold 'em's simplicity and popularity have inspired a wide variety of strategy books which provide recommendations for proper play. Most of these books recommend a strategy that involves playing relatively few hands but betting and raising often with the hands one plays.[20] In the first decade of the twenty-first century, Texas hold 'em experienced a surge in popularity worldwide.[19] Many observers attribute this growth to the synergy of five factors: the invention of online poker, the game's appearance in film and on television, the 2004–05 NHL lockout,[21] the appearance of television commercials advertising online cardrooms, and the 2003 World Series of Poker championship victory by online qualifier Chris Moneymaker.[22]