Kopitar's Collection
Kopitar's Collection of Slavic codices (NUK, Cod. Kop. 1–33) is one of the most precious treasures of the National and University Library. The collection is kept as a corpus separatum. As part of the bequest of the linguist Jernej Kopitar, the collection was purchased for the Lyceum Library in 1845. Most of the collection consists of the Old Church Slavonic codices of the South Slavic edition in Cyrillic, except one written in the Glagolitic alphabet. There are also some later manuscripts; five of them are new Bulgarian. The oldest manuscript in the collection is Codex Suprasliensis from the 11th century; it is one of the oldest Slavic linguistic documents written in the Cyrillic script and is listed on Unesco's Memory of the World list.

Student Journals
Even in times when publishing in media did not only depend on a click or two, young people – especially promising ones -, had a good deal to say. They exchanged poems, stories, thoughts and opinion in handwritten form. If they had the opportunity, they used a typewriter, and in this way student journals were created. Journals published first writings of many future intellectuals and artists. Many journals have been lost, however some from the 19th and the first half of the 20th century can still be read nowadays.

Bequests of Slovenian Writers and Poets
Bequests of Slovenian writers and poets that are kept and preserved by libraries and archives contain personal documents, photos, objects and handwritings that are irreplaceable foundations of our cultural history. They tell story about the development of Slovenian written and printed word, a story about the growth of the nation that has sprouted from it.

In a digitized form, these valuable documents are accessible to everyone. They address us in our living language all over again.

Medieval manuscripts (codices)
Codices, handwritten books from the period before the invention of the printing press, are valuable and rare library materials. The National and University Library of Slovenia stores 122 codices, which were created between the late antiquity and the modern times. The oldest codex is The Moralia and Job by Gregorius Magnus from the first half of the 9th century written in the early Carolingian minuscule script. The Stična Manuscript written around 1428, one of the most important Slovenian medieval texts, has also been digitized.