The room (or wall) is divided vertically into fifteen parts. All one-, two-, three-, and four-part combinations of four

A wall divided horizontally and vertically into four equal parts. Within each part, three of the four kinds of lines are

Tissue paper cut into 1½-inch (4 cm) squares and inserted into holes in the gray pegboard walls. All holes in the walls

(Detail: square and circle) On four black walls, white vertical parallel lines, and in the center of the walls, eight ge

Isometric form. May 2002 Acrylic paint Courtesy of the Estate of Sol LeWitt First Installation Donald Young Gallery, Chi

A black outlined square with a red diagonal line from the lower left corner toward the upper right corner; and another r

Square with broken bands of color. December 2003 Acrylic paint Collection of Henry S. McNeil First Installation Rhona Ho

The wall is bordered and divided horizontally and vertically into four equal parts with a 6-inch (15 cm) black ink band.

Arcs, circle, and irregular bands. September 1999 Acrylic paint Courtesy of the Estate of Sol LeWitt First Installation

Black rectangles and squares. June 1995 Dispersion paint Courtesy of the Estate of Sol LeWitt First Installation Ludwigs

A wall divided vertically into six equal parts, with two of the four kinds of line directions superimposed in each part.

Stars with three, four, five, six, seven, eight, and nine points, drawn with a light tone India ink wash inside, an Indi

Scribbles: Inverted curve (vertical). October 2005 Graphite Collection of Alessandro Maccaferri First Installation Galle

Four-part drawing with a different line direction in each part. September 1969 Black pencil Albright Knox Art Gallery, B

A square divided horizontally and vertically into four equal parts, each with a progressively darker gradation of gray.

Drawing Series— Part I-–IV, #1-–24, A B. (192 drawings). August 2006 Colored pencil Courtesy of the Estate of Sol LeW

Double Drawing. Right: Isometric Figure (Cube) with progressively darker graduations of gray on each of three planes; Le

Within a four-meter (160”) circle, draw 10,000 black straight lines and 10,000 black not straight lines. All lines are