Floating Marbles  1980

Floating Pin - Illustration from "A Drop of Water: A Book...  1997

Nature - Illustration from "I SPY A Book of Picture Riddl...  1992

Sorting and Classifying - Illustration from "I SPY School...  1995

O Frabjous Mirrors! - Illustration from Games Magazine  1984

Card Tricks - Illustration from "Can You See What I See?"  2002

Sandy Castle - Illustration from "I Spy Fantasy"  1994

Snowflake from A Drop of Water: A Book of Science and Won...  1997

In Suspense - Illustration from "Walter Wick's Optical Tr...  1998

Soap Bubble - Illustration from "A Drop of Water: A Book...  1997

Off the Greenland Coast under the Midnight Sun  1873