The collection of Ladislav Mňačko (1919–1994), a Slovak writer and former prominent Czechoslovak journalist, consists of unique correspondence, manuscripts, prints and clippings which help to describe the life of this significant writer, who after August 1968 was a critic of the communist regime and a representative of Czechoslovak exile literature.

The Professor of Modern German Literature, Frank Hörnigk from Berlin, published a book with volumes of material about Heiner Müller, already in 1989. In 1998, he began working with the Suhrkamp publishing house to publish a complete edition of Heiner Müller's poems, prose, plays and talks. From the beginning, Hörnigk worked with Müller's estate at the Academy of Arts and later also with the Heiner Müller Archive / Transitraum. After Hörnigk's death (2016), the head of collection of the Heiner-Müller Archive / Transitraum, Kristin Schulz, continued this work. The audiobook she created has 36 hours of audio recording from Heiner Müller, between 1972 and 1995, and received the German Audio Book Prize 2012 in the category “Beste Information” [Best Information].

The collection contains a great variety of documents that belonged to the historian and politician Sándor Varga. The majority of these documents are from the time when Varga was secretary of CSEMADOK (1968-1970), and they provide unique insight into the activities of this organisation. The collection also contains some documents that are related to the Hungarian youth organisation in Czechoslovakia. This organisation was an important platform for allowing young Hungarians in the country to make their voices heard. Through it, they organised workshops, discussions about the problems of the Hungarian minority in Slovakia, and also discussions about the general political situation (including The Prague Spring and the following events). Despite its short existence, CSEMADOK had a crucial role in the youth movement, and this underscores the significance of this collection.