Supporting his idea that the thought is more important than the act, LeWitt rejects the notion of art as a unique and precious object. He often uses assistants to execute the works based upon his detailed instructions. Adherence to LeWitt's system does not validate a scientific principle or insure technical perfection. For LeWitt, an idea may be mathematically or scientifically invalid, but as long as the executor follows the system established by the artist, a true expression of the idea is produced. The intent is to merely to make good art.
Some instructions are simple and straightforward and some are long and complex.
The wall is divided horizontally and vertically into six equal parts. The horizontal lines do not enter the figures. Wall drawings, perhaps more than any other medium LeWitt uses, illustrate this inherent tension between craftsmanship and anonymity. The historical precedent of Renaissance fresco painting, which LeWitt deeply admires, is counterbalanced by the execution of his wall drawings. By using industrial materials that erase any trace of craft and employing assistants to execute his ideas, LeWitt was one of the first artists to renounce the importance of the artist's hand.