http://finalfantasy.wikia.com/wiki/Scholar

EDIT: From link
Scholar (学者, Gakusha?) is a recurring Job in the Final Fantasy series. Experts in the theory of warfare, Scholars provide battlefield support and wear academic robes with mortar boards.

Like Red Mages, Scholars have access to both White and Black Magic, but with a far greater range of spells from which to choose -- and often automatic access to sensory magic. The trade-off is a lack of offensive ability; unlike Red Mages, Scholars may not wield swords or daggers, and instead go into battle armed with books or grimoires

That does fit the picture at all :P