From September 18, 2013 until August 22, 2014, Halle Saint Pierre in Paris celebrates 25 years of Raw Vision. With classical works of Art Brut, new discoveries, photos of extraordinary visionary environments and over 80 artists including Nek Chand, Joe Coleman, Sam Doyle, Howard Finster, Adolf Wölfli, Alex Grey, Tom Duncan, Michel Nedjar, Norbert Kox and many others.