How many pockets are on a pool table?

Tables used for pocket billiards, commonly known as pool, feature six pockets: one located at each of the four corners and one in the center of each of the two long sides.1

While some forms of billiards, such as carom billiards, are played on tables with no pockets, the standard table for pool, snooker, and English billiards is equipped with these six openings.1