In several installments of the Final Fantasy series of role-playing games by Square Enix, classes (jobs) are roles assigned to playable characters that determine the character's proficiencies. Classes can be loosely categorized into physical classes, which specialize in using weapons and techniques; magical classes, which are proficient in magic; and mixed classes, which combine elements of both classes in addition to other special abilities. This article summarizes the most common character classes; many games in the series have featured unique classes that have not reappeared in subsequent games. For information on those classes, see the article regarding the game in which the class appeared. Job classes in Final Fantasy XI are featured in Final Fantasy XI character classes; those in Final Fantasy Tactics Advance are featured inList of jobs in Final Fantasy Tactics Advance.