The third volume of the five-volume edition “Ancient Rus' in the light of foreign sources” contains eastern - Arab, Persian and Jewish - sources of the 9th-16th centuries. on the history of Eastern Europe... They contain a lot of unique information about Ancient Rus', Volga Bulgaria, the peoples of the Northern Black Sea region, the Northern Caucasus, and the Eastern Baltic states. The book contains fragments of works of various genres. Astronomical (al-Khorezmi, al-Fargani, al-Battani) and descriptive geography (Ibn Khordadbeh, Ibn Ruste, al-Istakhri, Ibn Haukal, al-Idrisi, etc.), historical (al-Balazuri, al-Yakubi) are presented here , Gardizi, etc.) and encyclopedic works (al-Masudi, al-Biruni, al-Bakri, etc.), notes of travelers (Ibn Fadlan, Abu Hamid al-Garnati, Petahia of Regensburg), epistolary works (Kiev letter, Jewish Khazar correspondence of the 10th century). The anthology is an addition to the textbook “Ancient Rus' in the light of foreign sources.”