Robert Hughes (1938-2012), the expatriate Australian art critic and writer, has died in New York after a long illness. There are many obituaries out there already and by reading them you'll get a good idea of what he did and what he wrote. A couple of good pieces that you may well miss have been written by Chong on his Culture Mulcher blog for Crikey.
Elsewhere:
"The Age", "The Australian", "Herald Sun", "The Sydney Morning Herald", "The Brisbane Times", "The Guardian", "The Telegraph", "The New York Times", "The Los Angeles Times", "The Financial Times".