The SLUB's special interest collections present recent acquisitions and noteworthy topics or features of the collections in a small exhibition in the foyer of the Central Library each month, which SLUB visitors can experience daily.
Currently, a facsimile of the famous Mayan manuscript, the Dresden Codex, is on display in conjunction with the exhibition "Apocalypse 2012? Deciphering the Dresden Codex".
I spend time on the moon just like others do on their balcony.
The term 
"outsider art" is used to describe naïve art, art brut, art of the mentally ill, and other peripheral regions of the art world. The term refers to the phenomena it names, a synonym for the label coined by Jean Dubuffet after WWII, "art brut" ("raw art"). Dubuffet used this term to denote works by persons who were "untouched by the established art scene, who were not trying to adapt to or imitate the art world – as opposed to other intellectual artists …" (1)
In the 1970s, the British art critic Roger Cardinal’s book Outsider Art (2) introduced a new term to describe such art, which is now used in German as well ("Ausseseiterkunst").
Image
Karl-Hans Janke: Raumkugel-Trajekt Terra Venussa, 1967
Deutsche Fotothek, AN.: rg_tra_0000085
In addition to the literature in the 
special interest collection Contemporary Art since 1945, there is a remarkable collection of so-called "outsider art" to be found in the Deutsche Fotothek’s digital image archive: the Janke Archive. This special archive contains more than 3,000 digitized drawings, giving insight to the fantastic technological world of Karl Hans Janke (1909-1988), where everything revolves around space travel.
Image
Karl-Hans Janke: Dampf-Gas-Trajekt, 1954
Deutsche Fotothek, AN.: rg_tra_0000005
Weitere Informationen und Literatur zum Thema finden Sie über die Suche im SLUB-Katalog, im Janke-Archiv der Detschen Fotothek oder in arthistoricum.net
The initial quote is from Antonin Artaud, quoted by Martina Weinhart in: Weltenwandler. Die Kunst der Outsider. Ostfildern, 2010; p. 15 (translation J.G.).
(1) Jean Dubuffet: "Art Brut: Vorzüge gegenüber der kulturellen Kunst". In: Wetterleuchten! Künstlermanisfeste des 20. Jahrhunderts. Hamburg, 2000. Quote taken from: Weltensammler. Bern, Sulgen, Zurich, 2011
(2) Roger Cardinal: Outsider Art. London, 1972