The Slovenská národná knižnica (in English: Slovak National Library) is a modern scientific, cultural, information and educational institution that serves all citizens of Slovakia and users from abroad.

SNL preferably collects, professionally processes, stores, protects and makes accessible domestic and foreign Slavic documents (documents related to Slovakia by author, language, place of printing, theme).

SNL also manages the historical library of the Apponyi family, located in Oponice castle.

SNL directly cooperates with slovak and foreign institutions on international projects solutions.

Dejiny Slovenskej národnej knižnice : historické predpoklady, podmienky jej vzniku a účinkovania do roku 1960 : úvahy a svedectvá.