The collection comprises most of the subjects for public use. The NLK has a collection of 15,000 titles of serials published in Korea Government Publications Publications coming from both Korean and foreign governments are collected. Some 470,000 items of maps, video tapes, cassette tapes, compact discs, CD-ROMs and electronic publications in package forms are included in the NLK's collection. They account for an increasing proportion in the library's holdings. The NLK has come 230,000 volumes of old books that were published before 1910.
Genealogical records take up the lion's share and mark the highest circulation rate.
As for rare books, there are some 800 titles in 3,500 volumes. Among them are several items that are designated as national treasures. Foreign Material Centred on Korea-related materials published abroad, the NLK actively collects academic books, serials and electronic materials under various subject matters. It also collects materials necessary for policy making, international organizations' publications and other materials related to the folklore, culture and arts of numerous countries. We offer major international academic databases through the in-house network or Internet.