Eduardo Chillida started with figurative sculpture based on the simplified human form, encouraged by his friendship with the abstract painter and sculptor Pablo Palazuelo, and the Archaic Greek sculptures in the Louvre.
Read MoreHowever he soon moved away from the plaster or stone torsos of works such as Recumbent (1949). His projects became much larger and more abstract, and saw him working with forged steel or cast iron after returning to Basque Country in the early 1950s.
A characteristic motif in the public sculpture Chillida methodically explored over the following years involved massive rhythmic and extended linear curves that evoke open hands or claws. These are often made from rust-coloured Corten steel, and the site very carefully chosen. See for example, the gigantic three-part Comb of the Wind (1976), Berlin (2000), and De Musica IV (1999). Sometimes he made concrete versions of these, such as From the Horizon (1956) and Monument to Tolerance (1992).
Other cast-iron works are corners made of heavy slabs, featuring intersecting vertical and horizontal planes, as in Topos V (1986).
Over the period of 1954—1966 Chillida made 'Anvil of Dreams', a series of small portable sculptures based on the process of hammering in a forge, but incorporating vertical blocks of wood as plinths ('anvils') supporting spatially extended steel forms ('hammers'). Examples include Anvil of Dreams XIII (1962), Anvil of Dreams III (1958), and Anvil of Dreams VIII (1959).
In 1961 Chillida travelled through Greece and Italy with his wife Pilar Belzunce and friend Jacques Dupin, the poet. He loved the Mediterranean light, especially its effect on the surfaces of austere white buildings, and the sculpture of Medardo Rosso.
The impact of this trip can be found in some of Chillida's sculptures that celebrate the glowing and subtly translucent properties of alabaster. Examples include Study for Homage to Kandinsky (1965) and three other prolific series: 'In Praise of Light' (1971), 'In Praise of Architecture' (1974;), 'House of Light' (1977), and 'Unorthodox Architecture' (1978).
Chillida was very friendly with two philosophers—Martin Heidegger and Gaston Bachelard—both very interested in space. Chillida created seven lithographic collages to illustrate Heidegger's essay 'Art and Space', and Bachelard wrote about Chillida's practice, as did the Mexican poet Octavio Paz.
Chillida also made intimate chamotte clay forms, often painted on their vertical sides in black copper oxide, the simple geometric forms linked to his many drawings and prints. See for example Oxide G-312 (1995), Untitled (1977), and Continuation III (1966).