Afropolis: city, media, art; [Cairo, Lagos, Nairobi, Kinshasa, Johannesburg; ... accompanies the Exhibition "Afropolis. City, Media, Art"; Rautenstrauch-Joest-Museum, Cultures of the World, Cologne, 5 November 2010 - 13 March 2011; Iwalewa House, University of Bayreuth, 21 April 2011 - 4. September 2011; preview in Nairobi in cooperation with the Goethe-Institut Nairobi, 22 May - 4 June 2010]