The content of the collection covers the estate of the Belgrade sociologist Nebojša Popov. The description of the collection states that material is arranged in the following way:
Boxes 1-4: prints, manuscripts, press clippings, newspapers, magazines, court decisions, appeals, minutes of opposition meetings and round table discussions, excerpts of book pages, articles from academic journals, etc., from 1970 to 2000.
Box 5: book excerpts, articles from academic journals, and similar items.
Box 6: magazines, periodicals, photo documentation - originals.
Box 7: prints, manuscripts, press clippings, newspapers, magazines, court decisions, appeals, minutes from sessions of the University Council in Belgrade, “Student Declaration,” minutes of round table discussions with lists of participants, book excerpts, articles from professional journals, from 1970 to 2000.
Box 8: photocopies of press articles and professional literature before World War I, during and after World War II; original printed copies and brochures from different periods; the ethnic map of Yugoslavia in the edition of NIN (undated);
Box 9: bibliographies of texts on different topics, prints from the press referring for instane to Dobrica Cosic, 5 October 2000, Ljuba Tadic et al., letters and photographs from opposition’s protests.
Box 10: manuscripts, minutes from NSF meetings (editorial office for the unpublished book Srpska strana rata) held during 1994-5, papers on dissidents, photocopies of works on Bolshevism, Spomenka Huber - Various, Electrotechnical Students' School, Praxis, etc.).
Boxes 11-14: material pertaining to student demonstrations in 1968.
Box 15: material pertaining to the position of women in society, including family, freedom and equality for women, feminism, and the like.
Box 16: material pertaining to the issues of human rights, political conflict, and processes, court decisions on prohibiting the sale and dissemination of books, film scenes, etc.
Box 17: material pertaining to Legija (the main organizer of Zoran Djindjic's assassination), Slobodan Milosevic, Stambolic case (murder of Ivan Stambolic, former president of the CK SK of Serbia by the security organizations of Serbia), etc.
The collection also contains around three-hundred books.