This is the 12072nd most frequent Polish word.
literaturę
"Literaturę" is the accusative form of "literatura," meaning "literature" in English.
The word 'literaturę' here is in the accusative case, used as the direct object of the verb 'czytasz' (do you read).
Czytasz literaturę w języku polskim?
Do you read literature in the Polish language?
The word 'literaturę' changes to 'literaturą' in this sentence, in the instrumental case, preceded by the preposition 'jestem zainteresowany'.
Jestem zainteresowany literaturą współczesną.
I am interested in contemporary literature.
Here, 'literaturę' takes the genitive form 'literatury' to indicate possession or association with the 'arcydzieła' (masterpieces) displayed at the exhibition.