A source material, for Rauschenberg, could have been almost anything. Among the most prolific and consistently surprising American artists, he worked for over 50 years in a variety of media from feathers, stuffed goats, socks and neckties to cardboard, grass and scrap metal, in genres including choreography, costume design, photography, printmaking and painting.

http://nytimes.com/2015/06/03/t-mag…