[London, Studio International] c1969.
N40.1 .L675 A1 ARTLCKS
Lewitt's small book of cross-hatched lines is a key, relatively early example of his career-long interest in the production of art by systematic means--in this case, by mathematical permutations.
Four Basic Kinds of Straight Lines: 1. Vertical. 2. Horizontal. 3. Diagonal l. to r. 4. Diagonal r. to l. and their Combinations.