Paul Klee (German pronunciation: [ˈkleː]; 18 December 1879 – 29 June 1940) was born in Münchenbuchsee, Switzerland, and is considered both a German and a Swisspainter. His highly individual style was influenced by movements in art that included expressionism, cubism, and surrealism. He was, as well, a student of orientalism. Klee was a natural draftsman who experimented with and eventually mastered colour theory, and wrote extensively about it; his lectures Writings on Form and Design Theory (Schriften zur Form und Gestaltungslehre), published in English as the Paul Klee Notebooks, are considered so important for modern art that they are compared to the importance that Leonardo da Vinci's A Treatise on Painting had for Renaissance. He and his colleague, the Russian painter Wassily Kandinsky, both taught at the German Bauhaus school of art, design and architecture. His works reflect his dry humour and his sometimes childlike perspective, his personal moods and beliefs, and his musicality.

Renzo Piano, Ufficiale OMRI (born 14 September 1937 in Genoa) is an Italian Pritzker Prize-winning architect. Architecture critic Nicolai Ouroussoff said of Piano's works that the "...serenity of his best buildings can almost make you believe that we live in a civilized world."

In 2006, Piano was selected by TIME as one of the 100 most influential people in the world. He was selected as the 10th most influential person in the "Arts and Entertainment" category of the 2006 Time 100.

Piano was born in Genoa, Italy, in 1937 into a family of builders. He was educated and subsequently taught at the Politecnico di Milano. He graduated from the University in 1964 and began working with experimental lightweight structures and basic shelters. From 1965 to 1970 he worked with Louis Kahn and Z.S. Makowsky. He worked together with Richard Rogers from 1971 to 1977; their most famous joint project is the Centre Georges Pompidou in Paris (1977). He also had a long collaboration with the engineer Peter Rice, with whom he shared a practice (L'Atelier Piano and Rice) between 1977 and 1981.