Maurizio Cattelan has exhibited internationally in leading institutions and has participated numerous times in the Venice Biennale. He curated the 4th Berlin Biennale with Massimiliano Gioni and Ali Subotnick. Cattelan also founded the art magazines Permanent Food and Charley. Since retiring from art, after the acclaimed 2011 retrospective at the Guggenheim Museum in New York City, he has committed himself to publishing Toiletpaper magazine. Pierpaolo Ferrari is a fashion and advertising photographer and creative researcher. In 2007, he began a collaboration with L'Uomo Vogue which offered him the chance to explore the portrait's potential and radically change its codes. In 2009, he teamed with Maurizio Cattelan to create Toiletpaper.