Qobusnoma is a historical text written in the 82-83 years of the XI century by Kaykovus, the ruler of Mozandaron (Tabaristan). It provides valuable insights into the political and educational aspects of that period Qobusnoma — Kaykovus (asl ismi Unsur al-Maoliy) tomonidan XI asrning 82–83-yillarida fors tilida yozilgan asar. Sharq va Markaziy Osiyo xalqlari orasida keng tarqalgan axloqiy-taʼlimiy asar, fors-tojik badiiy nasrining birinchi va yirik yodgorligi.