1964 The Hungarian-born artist Victor Vasarely was perhaps one of the better-known artists in this field Op art used straight and curved edges, and the next trend was Hard-Edge painting, which was largely a reaction to abstract expressionism With its creative center being California through the 1960s, artists include Lorse Feitelson, his wife Helen Lundeberg, and was heavily promoted by Peter Selz, a professor at Claremont College in California Minimal art was introduced in the late 1960s by Donald Judd, Carl Andre, Richard Serra, and others at the same time that Robert Bresson was directing films and Samuel Beckett was writing plays, also in a minimalist way The trend toward minimalism continued through the early 1970s, being mirrored in architecture and design The influence of minimalism led to a new trend of postminimalism, with grids and seriality adding a human element to the work Tom Friedman, Eva Hesse, Anish Kapoor, Joel Shapiro, and Richard Tuttle were some whose work conveyed the essence of postminimalism art and architecture 33 From the late 1960s a new trend of lyrical abstraction started to emerge from the abstract art movement, primarily in New York and Los Angeles, developing in Toronto, Canada, and London It drew from tachisme, which had been popular as a French art style from 1945 until 1960, and also from abstract impressionism, the term lyrical abstraction being first coined by Robert Pincus-Witten in 1969 A greater environmental awareness from the late 1950s and early 1960s helped influence land art, which started in the late 1960s, whereby artworks were made from rocks, sticks, plants and soil from nature Many of these works were made outdoors and have not survived, although they were recorded in photographs Some artists were influenced by the photographs brought back from the Moon by Apollo missions, and there have been extensive outdoor projects by Latin American artists Some ideas from this field have been expressed in conceptual art, which involved objects taking precedence over many aesthetic concerns By the late 1960s the concept of photorealism Campbell’s Soup Cans by Andy Warhol, 1962, displayed in the Museum of Modern Art in New York Warhol was an American artist who became a central figure in the movement known as Pop Art