Blackjack is one of the world’s most popular casino card games. Much of its success can be put down to its heady concoction of chance and skill, but also because it’s a game that’s incredibly simple to play. Just make a hand totaling 21 without going over and busting. Picture cards (Jacks, Queens and Kings) count as 10, with all the other cards representing their face value. The exception is the Ace, which can count as a 1 or an 11 - depending on what’s best for you.