The two largest and most well-known tournaments are the World Poker Tour championship event and the World Series of Poker, both held in Las Vegas, Nevada.
The 2005 World Series of Poker was the first held outside of Binion's Horseshoe Casino, though the final few days of the main event were held in the legendary Benny's Bullpen. Future tournaments have been held at one of the Harrah's Entertainment properties; since 2005, the Rio has served as the host venue.
Arguably the most publicized European tournament is the Poker Million, which began in 2000 on Sky Sports, following on from the success of the Late Night Poker television show.
In addition to these events, there are other major tournaments throughout the year. The World Poker Tour broadcasts a series of open tournaments throughout the U.S. and Caribbean with buy-ins from $5,000 to $25,000, as well as a European event.
After slow but steady gains in popularity throughout the 20th century, hold 'em's popularity surged in the 2000s due to exposure on television, on the Internet, and in popular literature. During this time hold 'em replaced 7 card stud as the most common game in U.S. casinos, almost totally eclipsing the once popular game. 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).
Because each player only starts with two cards and the remaining cards are shared, it presents an opportune game for strategic analysis (including mathematical analysis). 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.