April in Paris, 1989, pastel on black museum board, 84 x 60 inches

Ying-Yang Morning, 1987, pastel on black museum board, 40 x 60 inches

Gold-Point, 1987, gold point and white gouache on prepared board, 14 x 17 inches

Self-Portrait, 1985, silver point on board, 17 x 14 inches

Towards the Moment of Tranquility, 1983, charcoal on museum board, 32 x 32 inches

Help, 1983, graphite on paper, 6 x 6 inches

Third Cup of Coffee, 1983, charcoal and oil pastel on paper, 43.75 x 51.5 inches

It’s the Busy, Worrying Mind that keeps Us from Acting with Animal Grace, 1983, graphite on paper, 42 x 32 inches

He is Thingking... I’ll get even, just wait!, 1983, graphite on paper, 23 x 30 inches

Big Ear or Big Mouth, 1982 - 1983, white charcoal on black museum board, 64 x 80 inches

Annie's Drawing, 1982, graphite on paper, 42 x 32 inches

Why Doesn't it Ring?, 1980, graphite on paper, 71 x 57 inches

Complaining Cup, 1979, graphite on paper, 23 x 30 inches

Confidence Man, 1978 - 1979, graphite on paper, 23 x 30 inches

Hat Magic, 1978 - 1979, graphite on paper, 23 x 30 inches

Heart Cup, 1978, graphite on paper, 41.5 x 29.5 inches

You Know Dorothy, Don't you?, 1977, graphite on paper, 3D stereo drawing, 11 x 14 inches

This Story Isn't Finished Yet..., 1976, graphite on paper, 3D stereo drawing, 11 x 14 inches

Idea Drawing for Flawed Cup, 1975, graphite on paper, 11 x 14 inches