The National Széchényi Library (Hungarian: Országos Széchényi Könyvtár) (OSZK) is a library in Budapest, Hungary and was founded in 1802. It is one of the two Hungarian national libraries, the other being the University of Debrecen Library.
More information on the Wikipedia pages [1] (English) and [2] (Hungarian)
The English language version of the website is [3].