This collection contains a number of manuscripts from noted science fiction author John Sladek (1937-2000). The materials, which include typed manuscripts, galleys, and notes, range through most of Sladek's career and contan many of his most notable works. Works represented in the collection include Roderick, or The Education of A Young Machine(1980) and its sequel Roderick at Random(1983); Tik-Tok(1983), and The Muller-Fokker Effect(1970).

Also included are manuscripts for a number of works Sladek wrote under various pseudonyms. These pseudonyms include Cassanda Knye, Richard A. Tilms, and James Vogh.