In conceptual art the idea or concept is the most important aspect of the work.
Sol LeWitt is credited as one of the pioneers of the conceptual art movement that came out of New York in the 1960s. He is best known for his large-scale wall drawings which utilize the skill of students and draftsmen in order to execute them.
In my case, I used the elements of these simple forms - square, cube, line and color - to produce logical systems. Most of these systems were finite; that is, they were complete using all possible variations. This kept them simple.