Conceptual art is art in which the concept(s) or idea(s) involved in the work take precedence over traditional aesthetic and material concerns. Many of the works, sometimes called installations, of the artist Sol LeWitt may be constructed by anyone simply by following a set of written instructions. This method was fundamental to LeWitt's definition of Conceptual art, one of the first to appear in print:

Tony Godfrey, author of Conceptual Art (Art & Ideas) (1998), asserts that conceptual art questions the nature of art, a notion that Joseph Kosuth elevated to a definition of art itself in his seminal, early manifesto of conceptual art, "Art after Philosophy" (1969). The notion that art should examine its own nature was already a potent aspect of (the influential art critic) Clement Greenberg's vision of Modern art during the 1950s. With the emergence of an exclusively language-based art in the 1960s, however, conceptual artists such as Joseph Kosuth, Lawrence Weiner and the English Art & Language group began a far more radical interrogation of art than was previously possible (see below). One of the first and most important things they questioned was the common assumption that the role of the artist was to create special kinds of material objects.

Lawrence Weiner (born February 10, 1942) was a central figure in the formation of conceptual art in the 1960s His work often takes the form of typographic texts.

Weiner was born in the Bronx, New York. After graduating from Stuyvesant High School at 16, he had a variety of jobs—he worked on an oil tanker, on docks, and unloading railroad cars. After studying at Hunter College for less than a year, he traveled throughout North America before returning to New York.

Weiner is regarded as a founding figure of Postminimalism’s Conceptual arm, which includes artists like Douglas Huebler, Robert Barry, Joseph Kosuth, and Sol LeWitt.

Weiner began his career as an artist as a very young man at the height of Abstract Expressionism. His debut public work/exhibition was at the age of 19, with what he called Cratering Piece. An action piece, the work consisted of explosives set to ignite simultaneously in the four corners of a field in Marin County, California. That work, as Weiner later developed his practice as a painter, became an epiphany for the turning point in his career. His work in the early 1960s included six years of making explosions in the landscape of California to create craters as individual sculptures. He is also known during his early work for creating gestures described in simple statements leading to the ambiguity of whether the artwork was the gesture or the statement describing the gesture: e.g."Two minutes of spray paint directly on the floor.." or " A 36" x 36" removal of lathing or support wall..." (both 1968). In 1968, when Sol LeWitt came up with his Paragraphs on Conceptual Art, Weiner formulated his "Declaration of Intent" (1968):