In March 1971, two manuscripts of unique books describing the events of Aktual, created by a Czech artist, musician and performer Milan Knížák, were bought by the Literary Archive of the Museum of Czech Literature (LA PNP). The books, containing scripts of happenings organised by a nonconformist art group Aktual in 1962–1969 as well as manuscripts and typescripts with illustrations and photographs, were sold to LA PNP by Knížák himself after a deal with its employee, PhDr. Jaromír Loužil. This acquisition was interesting for PNP mainly because it documents the artistic and literary effort in the 1960s. By similar purchases, PNP not only gained materials created by “unofficial” authors, but at the same time financially supported them.