Rila Monastery is the oldest and largest Bulgarian monastery. Its library has been a unique venue of spiritual holiness for a period of time encompassing centuries. There are 60,000 entries in the library, of which old print books amount to 9,000 volumes. These are Slavonic, Bulgarian, Greek, Arabic and Aramaic manuscripts, old print issues in Church-Slavonic, old books and journals in Bulgarian, Russian, Serbian, Romanian, Greek, Arabic, etc. as well as other valuable monuments.