Christo & Jeanne-Claude have worked in collaboration since 1961, and lived in New York City since 1964. Their large-scale projects include Wrapped Coast, Australia, 1968–69, Valley Curtain, Rifle, Colorado, 1970–72, Running Fence, Sonoma and Marin Counties, California, 1972–76, Surrounded Islands, Biscayne Bay, Florida, 1980–83, The Pont Neuf Wrapped, Paris, 1975–85, The Umbrellas, Japan–USA, 1984–91, Wrapped Reichstag, Berlin, 1971–95, Wrapped Trees, Riehen, Switzerland, 1997–98 and The Gates, Central Park, New York City, 1979-2005. Jeanne-Claude died in 2009.

Jacob Baal-Teshuva, born 1929, is author, critic and independent curator of museum shows. He studied at the Hebrew university in Jerusalem and New York University. His numerous publications include works on Marc Chagall, Alexander Calder, Jean-Michel Basquiat, Andy Warhol and Christo and Jeanne-Claude. Jacob Baal-Teshuva lives and works in New York and Paris.

Wolfgang Volz has worked with Christo and Jeanne-Claude as the exclusive photographer of their works since 1971. He was also project director (with Roland Specker) for Wrapped Reichstag and (with Josy Kraft) for Wrapped Trees, and was in charge of The Wall - 13,000 Oil Barrels, 1999. His close collaboration has resulted in many books and more than 300 exhibitions in museums and galleries around the world.