Density and StoppageMethod A treats the space of the paper as catalog of variables. In series 002, each drawing is a matrix. Vertically, each square swatch contains lines drawn with increasing numbers of stops along the paths. This leads to pools of ink building up at the stop point. Lines at the top are drawn with no stops. Lines at the bottom are drawn with 20 stops. Horizontally, each swatch contains an increasing number of lines, always regularly spaced. Both the variables in the vertical and horizontal dimensions vary linearly.