Babban Laburaren ( Polish ) shine babban ɗakin karatu na Yaren mutanen Poland, kai tsaye ga Ma'aikatar Al'adu da Kayan Tarihi na Jamhuriyar Poland . Laburaren yana tattara littattafai, majallu, kamfuta mai amfani da lantarki da na sauti da aka buga a yankin Poland, da Polonica da aka buga a ƙasashen waje. Ita ce mafi mahimmancin laburaren binciken ɗabi'a, babban tarihin tarihin rubutun Yaren mutanen Poland da kuma cibiyar nazarin tarihin littattafai domin tsaftace littattafai. Hakanan yana taka muhimmiyar rawa a matsayin babban cibiyar bincike, kuma yana da muhimmiyar cibiyar hanya don sauran ɗakunan karatu na Yaren mutanen Poland. Laburaren na Kasa yana karbar kwafin kowane littafin da aka buga a Poland azaman ajiya na doka . Laburaren Jagiellonian shine kawai sauran laburaren a Poland don samun matsayin ɗakin karatu na ƙasa. Akwai bangarori guda uku: Laburaren Cibiyar Bibliographic Institute of National Library Littafin da Karanta Makaranta Tarihin Laburaren Kasa ya samo asali ne a karni na 18 ( Załuski Library ) gami da abubuwa daga tarin John III Sobieski waɗanda aka samo daga ɗiyar sa Maria Karolina Sobieska, Duchess na Bouillon.