Sportsbooks are online sites that offer bets on a wide range of different sports. These sites are usually open 24 hours a day and allow you to place wagers via phone, email, or live chat. You can also deposit or withdraw funds at any time.

There are several kinds of bets you can place, including point spreads, totals, and futures book bets. A few types of parlay cards are available, as well. These are all bets that you can make with a single stake.

There are also wagers that you can make during an event. These are called in-play wagers, and they are often available during certain time periods. You can bet on things like the American League East pennant or the Stanley Cup.

One of the newest betting options is the use of mobile apps. This is especially useful for those who don’t have the time or the desire to visit a sportsbook. The best apps for usability and competitive odds are FanDuel and Caesars.

New York’s sportsbooks are the biggest legal sports betting market in the United States. They provide access to a variety of US sports, and they’re also able to provide betting on a wide range of international sports.

Sportsbooks have their own rules and regulations, so be sure to read them before you make your selection. Check out independent reviews of each site. You should be aware of the rules for in-play wagering and self-exclusion lists.