The rare books collection in the Slavonic Library houses works published in the 16th and the 17th centuries as well as the early-18th century. They include works on religion, natural sciences and history as well as fiction. The collection also includes publications containing administrative documents. There are works in Russian, Church Slavonic and Polish.
Its own collection within the rare books are the works of Russian avant-garde futurists published in the 1910s and 1920s. These publications are available in electronic format.