This book brings together some of the most beautiful works in UNESCO's Collection. One finds anonymous artists alongside some of the most renowned art figures worldwide: Joan Mir , Jean Arp, Karel Appel, Afro Basaldella, Roberto Matta, Alexander Calder, Eduardo Chillida, Henry Moore, Rufino Tamayo, Antoni T pies, Isamu Noguchi, Jes s Rafael Soto, Le Corbusier, Carlos Cruz-Diez, Err , Tadao Ando, and many others. The collection has been built up gradually since the construction of the Organization's Headquarters in Paris. All artistic media are represented: mosaics, sculptures, frescos, photographs, tapestries and paintings. Growing over the years thanks to the generosity of its Member States, UNESCO's collection today includes over 800 works. It remains the most important artistic heritage of the United Nations.