The article examines the socio-cultural aspects of the Kyiv-Pechersk Lavra Library functioning in the 1770–80s. The focus is on acquiring the books as a purposeful way to form a collection of books that best demonstrated the monastery’s needs for books, interests and reading tastes of the fraternity. The author attempts to reconstruct the network of «book agents»: people who assisted in books acquisition; determine who was the initiator and who was the implementer of procurement; specify the needs in the printed books, as well as whether printed books completely displaced the manuscripts at the end of the 18th century.The author discovers the interest of the Kyiv-Pechersk Lavra in replenishing the book collection not only to meet the readers’ needs of the fraternity but also based on the understanding of the importance of a well-stocked library to confirm the status of the monastery. It has been established that the «book agents» were the Lavra attorneys in Moscow and St. Petersburg, who carried out various assignments of the monastery; former Lavra monks transferred to other dioceses; or persons loyal to Lavra, specifically involved for this purpose. There is interest in translated literature, periodicals, new publications, and activity in the purchase of printed materials, which generally signals changes in the reading practices of the monastic corporation. The analysis of the repertoire of purchased books confirmed the spread of the ideas of the Enlightenment and the growing demand for secular and educational books on science and nature. The Kyiv-Pechersk Lavra, while remaining quite traditional in the segment of theological literature, where Latin continued to dominate, demonstrated openness to new trends in book culture of the second half of the 18th century.