Farsi is the official language of Iran, where over 67 million people speak its standard form. This phrase book and dictionary contains all the essential aspects of the language, detailing the alphabet and grammar, as well as listing a number of travel-oriented phrases.Farsi is the official language of Iran, where over 67 million people speak its standard form. This phrase book and dictionary contains all the essential aspects of the language, detailing the alphabet and grammar, as well as listing a number of travel-oriented phrases.